Stifling nostalgia -- turn well away (13)

I believe the answer is:

strangulation

I'm a little stuck... Click here to teach me more about this clue!

'stifling' is the definition.
(thesaurus)

'nostalgia turn well away' is the wordplay.
'nostalgia turn' can be anagrammed to 'STRANGULATION'.
Though, I'm unsure how the anagram is indicated.

Can you help me to learn more?

(Other definitions for strangulation that I've seen before include "murder" , "Process of choking" , "The choking off of a flow" , "The choking off of a blood vessel" , "Act of choking" .)

I've seen this clue in The Telegraph.

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