Unfortunate score, own goal let in, seeing Ebenezer? (7)
I believe the answer is:
scrooge
'ebenezer?' is the definition.
(Ebenezer Scrooge in Dickens' A Christmas Carol)
'unfortunate score own goal let in' is the wordplay.
'unfortunate' indicates anagramming the letters.
'own goal' becomes 'OG' (football abbreviation).
'let in' indicates putting letters inside.
'score' anagrammed gives 'scroe'.
'scroe' placed around 'og' is 'SCROOGE'.
'seeing' is the link.
(Other definitions for scrooge that I've seen before include "'A Christmas Carol' character" , "One mean with money" , "seasonal miser" , "Skinflint Ebenezer" , "Miser in Christmas tale" .)