Scored ten at Old Trafford in the end — fantastic! (7)
I believe the answer is:
notated
'scored' is the definition.
(I've seen this in another clue)
'ten at old trafford in the end fantastic' is the wordplay.
'old' becomes 'o' (abbreviation).
'in the end' suggests the final letters.
'fantastic' is an anagram indicator (a fantastic or improbable ordering of the letters).
The last letter of 'trafford' is 'd'.
'ten'+'at'+'o'+'d'='tenatod'
'tenatod' is an anagram of 'NOTATED'.
(Other definitions for notated that I've seen before include "Set down in symbols" , "symbolically portrayed" , "wrote music?" , "commented on" , "Written like a music score" .)