Wrestle gross eater? (7)
I believe the answer is:
grapple
'wrestle' is the definition.
(synonyms)
'gross eater?' is the wordplay.
'gross' becomes 'gr' (abbreviation).
'eater?' becomes 'apple' (I can't explain this - if you can you should believe this answer much more).
'gr'+'apple'='GRAPPLE'
Can you help me to learn more?
(Other definitions for grapple that I've seen before include "Fight hand-to-hand" , "Engage in close fighting" , "Wrestle mentally (with)" , "Engage closely with" , "Lay hold of" .)