Distant driveway - powerless to go round (14)

I believe the answer is:

unapproachable

'distant' is the definition.
(synonyms)

'driveway powerless to go round' is the wordplay.
'driveway' becomes 'approach' (I've seen this before).
'powerless' becomes 'unable' (similar in meaning).
'to go round' indicates putting letters inside.
'approach' inserted within 'unable' is 'UNAPPROACHABLE'.

I've seen this clue in The Daily Express.

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