Ship can produce vegetable (7)
I believe the answer is:
spinach
'vegetable' is the definition.
(spinach is a kind of vegetable)
'ship can produce' is the wordplay.
'produce' is an anagram indicator.
'ship'+'can'='shipcan'
'shipcan' with letters rearranged gives 'SPINACH'.
(Other definitions for spinach that I've seen before include "Vegetable, source of iron" , "Popeye the Sailor's vegetable of choice" , "Leafy vegetable" , "Vegetable plant" , "Popeye the Sailor's favourite vegetable" .)