No right to claim an advantage (5)
I believe the answer is:
asset
'advantage' is the definition.
(I've seen this before)
'no right to claim an' is the wordplay.
I cannot quite see how this works, but
'right' could be 'set' (setting is a kind of righting) and 'set' is located in the answer.
'an' could be 'a' and 'a' is found in the answer.
A single letter 's' remains which might be clued in a way I don't understand.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for asset that I've seen before include "It's an advantage to declare" , "Holding" , "Valuable possession, worth having" , "Useful or valuable quality or possession" , "good point" .)