Chaps in to prepare the green (7)
I believe the answer is:
spinach
'green' is the definition.
(I know that spinach is a type of green)
'chaps in to prepare' is the wordplay.
'to prepare' indicates anagramming the letters (I've seen 'prepared' mean this).
'chaps'+'in'='chapsin'
'chapsin' with letters rearranged gives 'SPINACH'.
'the' acts as a link.
(Other definitions for spinach that I've seen before include "leaves on plate?" , "Vegetable leaves" , "Leaf vegetable" , "something to eat" , "Leafy vegetable" .)