Soldiers receive short rebuke for bloomer (6)
I believe the answer is:
orchid
'for bloomer' is the definition.
(orchid is a kind of flowering plant)
'soldiers receive short' is the wordplay.
'soldiers' becomes 'or' (Other Rank).
'receive short' becomes 'chid' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'or'+'chid'='ORCHID'
'rebuke' is the link.
This may not be correct. It may belong to another bit of the clue.
Can you help me to learn more?
(Other definitions for orchid that I've seen before include "Family of flowers with unusual shapes and beautiful colours" , "elaborate bloomer" , "Lady's slipper, for example" , "Showy tropical flower" , "Plant with beautiful, unusually shaped flowers" .)