1.  flair(n = noun.cognition) genius - a natural talent; "he has a flair for mathematics"; "he has a genius for interior decorating"
is a kind of endowment, gift, natural endowment, talent

2.  flair(n = noun.attribute) dash, elan, panache, style - distinctive and stylish elegance; "he wooed her with the confident dash of a cavalry officer"
is a kind of elegance

3.  flair(n = noun.shape) flare - a shape that spreads outward; "the skirt had a wide flare"
is a kind of form, shape

1.  Smell; odor. [Webster 1913 Suppl.]

2.  Sense of smell; scent; fig., discriminating sense. [Webster 1913 Suppl.]

3.  A talent or ability, expecially an intuitive one that makes performance of a task appear easy; an intuitive appreciation; a knack; as, she has a flair for acting. [PJC]

4.  An attractive way of performing a task; style. [PJC]

flair, n.
1 an instinct for selecting or performing what is excellent, useful, etc.; a talent (has a flair for knowing what the public wants; has a flair for languages).
2 talent or ability, esp. artistic or stylistic.

Etymology:
F flairer to smell ult. f. L fragrare: see FRAGRANT