Returning to identify one's dope (5)
I believe the answer is:
idiot
'dope' is the definition.
(I've seen this before)
'returning to identify one's' is the wordplay.
'returning' says the letters should be written backwards.
'identify one's' becomes 'idi' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'to'+'idi'='toidi'
'toidi' written backwards gives 'IDIOT'.
Can you help me to learn more?
(Other definitions for idiot that I've seen before include "Oaf" , "Dunce" , "Steal small amount" , "Charlie" , "Ignoramus's" .)