The —, 2004 horror film starring Sarah Michelle Gellar (6)

I believe the answer is:

grudge

(Other definitions for grudge that I've seen before include "Envy or bad feeling towards" , "Hard feelings" , "Feeling of resentment or illwill" , "(Cause of) resent(ment)" , "Active resentment" .)

I've seen this clue in The Mirror.

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