Vegetable acceptable with drained ricotta (4)
I believe the answer is:
okra
'vegetable' is the definition.
(I know that okra is a type of vegetable)
'acceptable with drained ricotta' is the wordplay.
'acceptable' becomes 'OK' (OK can mean acceptable or fine).
'with' means one lot of letters go next to another.
'drained' means to remove the middle letters.
'ricotta' with its centre taken out is 'ra'.
'ok'+'ra'='OKRA'
(Other definitions for okra that I've seen before include "Ladies' fingers with edible pods" , "Edible seed pods" , "Long green tropical vegetable" , "Green pods, in stews" , "Lady's fingers; gumbo; bhindi" .)