Distribute some of those just rewards (5)
I believe the answer is:
strew
'distribute' is the definition.
(I know that strew is a more specific form of the action distribute)
'some of those just rewards' is the wordplay.
'some of' indicates the answer is hidden within the clue.
'STREW' is hidden in the letters of 'those just rewards'.
(Other definitions for strew that I've seen before include "Scatter loosely" , "Scatter untidily" , "Sprinkle" , "Scatter, spread around" .)