Anguish as explosives surround Rome unfortunately (7)

I believe the answer is:

torment

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

'anguish' is the definition.
(I know that anguish can be written as torment)

'explosives surround rome unfortunately' is the wordplay.
'explosives' becomes 'tnt' (I can't justify this - if you can you should believe this answer much more).
'surround' is an insertion indicator.
'unfortunately' is an anagram indicator (a bad or unfortunate spelling).
'rome' anagrammed gives 'orme'.
'tnt' placed around 'orme' is 'TORMENT'.

'as' acts as a link.

Can you help me to learn more?

(Other definitions for torment that I've seen before include "Cause great pain to" , "Pester or tease unmercifully" , "Great suffering" , "More TNT (anag.)" , "Persecute" .)

I've seen this clue in the Sydney Morning Herald.

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