Maybe Puck needs year off? That's OK (4)
I believe the answer is:
fair
'ok' is the definition.
(thesaurus)
I don't understand how the rest of the clue works.
(Other definitions for fair that I've seen before include "Equitable; expo" , "[OPPOSITE OF] Dark" , "'Just, reasonable (4)'" , "Attractive type of weather?" , "Pretty good" .)