Exciting all those lads, his antique (2,3,2,3,5)

I believe the answer is:

as old as the hills

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'antique' is the definition.
I don't know anything about this answer so I can't judge whether it can be defined by this definition.

'exciting all those lads his' is the wordplay.
'exciting' indicates an anagram.
'all'+'those'+'lads'+'his'='allthoseladshis'
'allthoseladshis' with letters rearranged gives 'AS OLD AS THE HILLS'.

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I've seen this clue in The Daily Express.

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