Crossword Genius

Formal wear? It may be your call (5)

Ross

I believe the answer is:

tails

I believe this is a double definition.

'formal wear?' is the first definition.
(as in tail-suits)

'it may be your call' is the second definition.
(as in calling a coin toss heads or tails)

(Other definitions for tails that I've seen before include "Full evening dress for men" , "Follows closely" , "Coin-tossing call" , "A possible fall of the pound" , "as opposed to heads" .)

I've seen this clue in The Times.
Want a hint initially instead of a full solution? Install my app