Aboard, he gets a firm kiss (3)

I believe the answer is:

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'aboard he' is the definition.
The answer is a person as well as being a singular noun. This is suggested by the definition.

'a firm kiss' is the wordplay.
'a firm' becomes 'co' (a firm is a company).
'kiss' becomes 'x' (X can represent a kiss).
'co'+'x'='COX'

'gets' acts as a link.

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(Other definitions for cox that I've seen before include "Passenger vehicle" , "Member of rowing crew" , "Steerer of oarsmen in rowing boat" , "He's in charge of a racing boat and its rowers" , "Helmsman" .)

I've seen this clue in the Evening Standard.

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