Is in time for Michaelmas, maybe (5)
I believe the answer is:
daisy
'michaelmas maybe' is the definition.
I can't tell whether this definition defines the answer.
'is in time' is the wordplay.
'in' is an insertion indicator.
'time' becomes 'day' (day is a kind of time).
'is' placed within 'day' is 'DAISY'.
'for' is the link.
(Other definitions for daisy that I've seen before include "Common wild flower" , "Plant; girl's name" , "Common wildflower" , "girl" , "chain, just the smallest bit?" .)