Dunderhead gets accused, but is released from custody (10)
I believe the answer is:
discharged
'is released from custody' is the definition.
I can't tell whether this definition defines the answer.
'dunderhead gets accused' is the wordplay.
'dunderhead' becomes 'd' (head letter of 'dunder').
'gets' becomes 'is' (I've seen this in other clues).
'accused' becomes 'charged' ('charge' can be a synonym of 'accuse').
'd'+'is'+'charged'='DISCHARGED'
'but' acts as a link.
Can you help me to learn more?
(Other definitions for discharged that I've seen before include "released" , "let off" , "Fired" .)