One pound charge at sea secured travel on return (6,3)

I believe the answer is:

rescue dog

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'one pound charge' is the definition.
I know nothing about this answer so I can't tell whether this works.

'at sea secured travel on return' is the wordplay.
'at sea' indicates an anagram.
'travel' becomes 'go' (synonyms).
'on return' says the letters should be written in reverse.
'go' backwards is 'og'.
'secured' with letters rearranged gives 'rescued'.
'rescued'+'og'='RESCUE DOG'

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I've seen this clue in The Sunday Times.

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