In the end, Oxford United wasted time (7)
I believe the answer is:
dallied
'wasted time' is the definition.
(I've seen this before)
'in the end oxford united' is the wordplay.
'in the end' suggests the final letters.
'united' becomes 'allied' (similar in meaning).
The final letter of 'oxford' is 'd'.
'd'+'allied'='DALLIED'
(Other definitions for dallied that I've seen before include "Idled, loitered" , "Idled or flirted" , "Dawdled or wasted time" , "moved slowly" , "Held back" .)