Like a fan during overtime (4)
I believe the answer is:
rapt
'like a fan during overtime' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for rapt that I've seen before include "Spellbound in part" , "Ecstatic in part" , "Absorbed and enchanted" , "Fully intent, fascinated" , "Gripped" .)