Way of getting around remoter areas after boat returns (7)

I believe the answer is:

postbus

'way of getting around remoter areas' is the definition.
(type of public transport in rural areas)

'after boat returns' is the wordplay.
'after' becomes 'post' (suffix meaning after, eg post-war).
'boat' becomes 'sub' (I've seen this before).
'returns' shows that the letters should be reversed in order.
'sub' back-to-front is 'bus'.
'post'+'bus'='POSTBUS'

(Another definition for postbus that I've seen is " versatile public transport".)

I've seen this clue in The Times.

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