Grand nicked by one scoundrel — or another? (5)
I believe the answer is:
rogue
'grand nicked' is the definition.
I can't judge whether this definition defines the answer.
'by one scoundrel or another?' is the wordplay.
'by' means one lot of letters go next to another.
'one scoundrel' becomes 'gue' (I can't explain this - if you can you should give a lot more credence to this answer).
'another?' indicates anagramming the letters (I've seen 'another' mean this).
'or' is an anagram of 'ro'.
'gue' after 'ro' is 'ROGUE'.
Can you help me to learn more?
(Other definitions for rogue that I've seen before include "Rapscallion" , "Wild animal living apart from herd, say elephant" , "Baddie" , "Dishonest chap; solitary (elephant)" , "Wild animal driven away from herd" .)