Settled score with duke, say, at no point retreating (8)
I believe the answer is:
revenged
'settled score' is the definition.
Although both the answer and definition are past participle verbs, I don't understand how they can define each other.
'duke say at no point retreating' is the wordplay.
'duke' becomes 'd' (abbreviation).
'say' becomes 'eg' (both can mean for example).
'at no point' becomes 'never' (I've seen this in another clue).
'retreating' is a reversal indicator.
'd'+'eg'+'never'='degnever'
'degnever' reversed gives 'REVENGED'.
'with' acts as a link.
Can you help me to learn more?
(Other definitions for revenged that I've seen before include "Requited; got one's own back" , "Inflicted injury in retribution" , "Repaid (a wrong)" .)