Northeast's near-ruined tangle (7)
I believe the answer is:
ensnare
'tangle' is the definition.
(thesaurus)
'northeast's near-ruined' is the wordplay.
'northeast's' becomes 'ens' (I can't explain this - if you can you should give a lot more credence to this answer).
'ruined' is an anagram indicator.
'near' with letters rearranged gives 'nare'.
'ens'+'nare'='ENSNARE'
Can you help me to learn more?
(Other definitions for ensnare that I've seen before include "Ecstatic expression of feeling" , "Catch as if in a trap or net" , "Capture, trap" , "Ambush" .)