Partners attached to street food (4)
I believe the answer is:
stew
'food' is the definition.
(stew is a kind of food)
'partners attached to street' is the wordplay.
'partners' becomes 'ew' (East and West are partners in the game bridge).
'attached to' is a charade indicator (letters next to each other).
'street' becomes 'st' (abbreviation).
'ew' after 'st' is 'STEW'.
(Other definitions for stew that I've seen before include "Wet food for wets" , "State of mental agitation (informal)" , "Get anxious" , "what might be for dinner?" , "Tight spot" .)