Plate gets broken - a bit of a bloomer (5)
I believe the answer is:
petal
'a bit of a bloomer' is the definition.
(part of a flower, something which blooms)
'plate gets broken' is the wordplay.
'gets broken' indicates an anagram.
'plate' is an anagram of 'PETAL'.
(Other definitions for petal that I've seen before include "A bit of flower" , "Floral segment" , "Leapt (anag.)" , "Bit of blooming" , "Plate (anag.)" .)