Supporters having short row in restaurant (9)
I believe the answer is:
brasserie
'in restaurant' is the definition.
(I've seen this before)
'supporters having short row' is the wordplay.
I cannot really understand how this works, but
'supporters' could be 'bras' (a bra gives support to breasts) and 'bras' is found within the answer.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for brasserie that I've seen before include "bar serving food" , "Caf" , "French restaurant" , "Small restaurant serving alcohol as well as food" , "bar in Paris" .)