Worst footballer? (4)
I believe the answer is:
best
This clue is a double definition.
'worst' is the first definition.
(both can mean to beat someone)
'footballer?' is the second definition.
(I've seen this before)
(Other definitions for best that I've seen before include "Limit of one's ability" , "The finest - worst" , "First < outdo < top" , "Most excellent; outwit" , "12 21[FOOTBALLER" .)