man of letters(n = noun.person) - a man devoted to literary or scholarly activities;
is a kind of humanist

1.  A writer, especially one who writes for a living. [PJC]

2.  A learned person; a scholar. [PJC]

N  scholar, connoisseur, savant, pundit, schoolman, professor, graduate, wrangler, academician, academist, master of arts, doctor, licentitate, gownsman, philosopher, master of math, scientist, clerk, sophist, sophister, linguist, glossolinguist, philologist, philologer, lexicographer, glossographer, grammarian, litterateur, literati, dilettanti, illuminati, cogniscenti, fellow, Hebraist, lexicologist, mullah, munshi, Sanskritish, sinologist, sinologue, Mezzofanti, admirable Crichton, Mecaenas, bookworm, helluo librorum, bibliophile, bibliomaniac, bluestocking, bas-bleu, bigwig, learned Theban, don, Artium Baccalaureus, Artium Magister, learned man, literary man, homo multarum literarum, man of learning, man of letters, man of education, man of genius, antiquarian, antiquary, archaeologist, sage, pedant, doctrinaire, pedagogue, Dr, Pangloss, pantologist, criminologist, schoolboy, learned, brought up at the feet of Gamaliel, he was a scholar and a ripe and good one, the manifold linguist.

age of man, apron man, average man, backup man, ballyhoo man, beef man, best man, bionic man, black man, boskop man, broth of a man, career man, cave man, city man, college man, common man, company man, con man, confidence man, conjure man, corner man, cow man, customer's man, dirty old man, divorced man, doctor of humane letters, elevator man, end man, enlisted man, ent man, fall of man, family man, fancy man, feral man, fighting man, fingerprint man, four-minute man, front man, g man, garbage man, gay man, gingerbread man, government man, great man, handy man, hatchet man, heidelberg man, hired man, hit man, holdup man, hollow man, holy man, honest man, inner man, iron man, isle of man, java man, ladies' man, leading man, learned man, leg man, letters, letters of administration, letters of marque, letters patent, letters testamentary, lookout man, maintenance man, man, man and wife, man eater, man eating, man friday, man hour, man in the street, man jack, man made, man of action, man of affairs, man of deeds, man of means, man of science, man of the cloth, man of the world, married man, mechanical man, medical man, medicine man, middle-aged man, military man, miracle man, modern man, mountain man, muffin man, muscle man, navy man, neandertal man, neanderthal man, odd man out, odd-job man, old man, old man of the mountain, organization man, outdoor man, party man, peking man, piltdown man, pivot man, point man, poor man, pr man, preacher man, prehistoric man, property man, public relations man, publicity man, railroad man, railway man, red man, remittance man, renaissance man, rewrite man, rhodesian man, rich man, right hand man, right-hand man, roman letters, section man, service man, solo man, song and dance man, sporting man, squaw man, stan the man, stickup man, stone age man, straight man, straw man, strong man, stunt man, t man, to a man, trigger man, trinil man, unmarried man, utility man, vigilance man, wealthy man, white man, wild man, wise man, wolf man, working man, worship of man, yellow man, yes man, young man