Best players unable to finish meal (5,3)
I believe the answer is:
cream tea
'meal' is the definition.
(I've seen this before)
'best players unable to finish' is the wordplay.
'best' becomes 'cream' (both can mean the elite).
'players' becomes 'team' (sports team).
'unable to finish' means to remove the last letter.
'team' with its last letter removed is 'tea'.
'cream'+'tea'='CREAM TEA'
(Other definitions for cream tea that I've seen before include "Supposedly civilised afternoon meal" , "tasty treat" , "Light afternoon meal" , "Meal with scones and jam" , "Devon speciality" .)