Salsa option (4)
I believe the answer is:
mild
'salsa option' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for mild that I've seen before include "Moderately warm - type of beer" , "Gentle - bland" , "Dark beer, not strong in flavour" , "having little effect" , "old cardinals ..." .)