Send payment for the right issue (5)
I believe the answer is:
remit
'send payment' is the definition.
(I've seen this before)
'for the right issue' is the wordplay.
'the right' indicates one should take the final letters (the letter on the right of the word).
'issue' becomes 'emit' (both can mean to give out or radiate).
The last letter of 'for' is 'r'.
'r'+'emit'='REMIT'
(Other definitions for remit that I've seen before include "Scope of reference" , "Abate; send (money)" , "Scope of prescribed job" , "Job specification" , "Relax; send (payment)" .)