Mock a doer of good deeds (5)
I believe the answer is:
scout
'mock' is the definition.
(thesaurus)
'a doer of good deeds' is the wordplay.
I cannot quite see how this works, but
'of' could be 'o' and 'o' is found in the answer.
The remaining letters 'scut' 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 scout that I've seen before include "Person sent out to gain information" , "Member of a youth movement" , "Soldier on a reconnaissance mission" , "Reconnoitre" , "Explore" .)