Life so harassed? Ponder remote part of Scotland (4,2,4)

I believe the answer is:

isle of mull

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'remote part of scotland' is the definition.
I know nothing about this answer so I cannot tell whether it can be defined by this definition.

'life so harassed? ponder' is the wordplay.
'harassed?' indicates an anagram.
'ponder' becomes 'mull' (synonyms).
'life'+'so'='lifeso'
'lifeso' with letters rearranged gives 'isleof'.
'isleof'+'mull'='ISLE OF MULL'

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