Has he no sense of duty? (4,6)
I believe the answer is:
free trader
'sense of duty?' is the definition.
Both the answer and definition are singular nouns.
Maybe they are linked in a way I don't understand?
'has he no' is the wordplay.
I cannot quite see how this works, but
'he' could be 'free' and 'free' is present in the answer.
The remaining letters 'trader' is a valid word which might be clued in a way I don't see.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for free trader that I've seen before include "Bright" , "as one whose views are of unrestricted general import" , "Duty-dodger" .)