The Scots wander about with peculiar gravitas (8)

I believe the answer is:

stravaig

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'the scots wander about' is the definition.
I can't tell whether this definition defines the answer.

'peculiar gravitas' is the wordplay.
'peculiar' indicates anagramming the letters (a peculiar or strange ordering of the letters).
'gravitas' is an anagram of 'STRAVAIG'.

'with' acts as a link.

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