What drawers make formal wear? (4)
I believe the answer is:
ties
This clue is a double definition.
'what drawers make' is the first definition.
(eg football teams who draw make a tie)
'formal wear?' is the second definition.
(ties are worn formally)
(Other definitions for ties that I've seen before include "obligations" , "allegiances" , "Binds with male neckwear" , "Fastens with a knot" , "Drawn games" .)