Impressed by pieces, say, editor undertook (7)
I believe the answer is:
essayed
'undertook' is the definition.
The definition and answer can be both to do with social activities as well as being past participle verbs.
Perhaps you can see a link between them that I can't see?
'impressed by pieces say editor' is the wordplay.
'ESSAYED' is hidden in amongst the letters.
But, I am unsure how the hidden word is indicated.
Can you help me to learn more?
(Other definitions for essayed that I've seen before include "Tried (E, not A)" , "tested" , "Attempted, tried" , "Attempted, strove" , "Made formal attempt" .)