Stare wildly at bloomer (5)
I believe the answer is:
aster
'bloomer' is the definition.
(aster is a kind of flowering plant)
'stare wildly' is the wordplay.
'wildly' indicates an anagram.
'stare' is an anagram of 'ASTER'.
'at' acts as a link.
(Other definitions for aster that I've seen before include "Showy garden flower" , "Kind of daisy" , "Stare (anag.)" , "Christmas daisy" , "Plant of Michaelmas daisy family" .)