Deserve new remit (5)
I believe the answer is:
merit
'deserve' is the definition.
(I know that deserve can be written as merit)
'new remit' is the wordplay.
'new' indicates anagramming the letters.
'remit' is an anagram of 'MERIT'.
(Other definitions for merit that I've seen before include "The M in OM" , "Value" , "Excellence that deserves to be honoured" , "Earn" , "Deserve, be worthy of" .)