1.  cleaner(n = noun.artifact) cleanser, cleansing agent - a preparation used in cleaning something;
is a kind of formulation, preparation
has particulars: bathroom cleaner, dentifrice, detergent, shampoo, soap
Derived form verb clean₁

2.  cleaner(n = noun.person) dry cleaner - the operator of dry-cleaning establishment;
is a kind of market keeper, shopkeeper, storekeeper, tradesman
Derived form verb clean₁

3.  cleaner(n = noun.person) - someone whose occupation is cleaning;
is a kind of jack, laborer, labourer, manual laborer
has particulars: char, charwoman, cleaning lady, cleaning woman, woman, chimneysweep, chimneysweeper, sweep, scourer, street cleaner, street sweeper, window cleaner
Derived forms verb clean₁, verb clean₃

   One who, or that which, cleans. [1913 Webster]

cleaner, n.
1 a person employed to clean the interior of a building.
2 (usu. in pl.) a commercial establishment for cleaning clothes.
3 a device or substance for cleaning.

Idiom:
take to the cleaners sl.
1 defraud or rob (a person) of all his or her money.
2 criticize severely.

air cleaner, bathroom cleaner, dry cleaner, pipe cleaner, street cleaner, vacuum cleaner, window cleaner