Crossword Genius

By going round the pub, one gets somewhere near Harrow (6)

Ross

I believe the answer is:

pinner

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'one gets somewhere near harrow' is the definition.
I can't tell whether this defines the answer.

'by going round the pub' is the wordplay.
'by' becomes 'per' (I've seen this in another clue).
'going round' means one lot of letters goes inside another (some letters go around others).
'the pub' becomes 'inn' (an inn is a type of pub).
'per' enclosing 'inn' is 'PINNER'.

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I've seen this clue in the Evening Standard.
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