England supporter hoping all playing finally contribute (10)
I believe the answer is:
anglophile
'england supporter' is the definition.
(I've seen this before)
'hoping all playing finally contribute' is the wordplay.
'playing' indicates an anagram.
'finally' suggests the final letters.
The final letter of 'contribute' is 'e'.
'hoping'+'all'='hopingall'
'hopingall' anagrammed gives 'anglophil'.
'anglophil'+'e'='ANGLOPHILE'
(Other definitions for anglophile that I've seen before include "England supporter" , "admirer of English" , "Our friend" .)