Sex work can lead topless angel astray (6,9)

I believe the answer is:

carnal knowledge

'sex' is the definition.
(carnal knowledge is a kind of sex)

'work can lead topless angel astray' is the wordplay.
'topless' means to remove the first letter.
'astray' indicates anagramming the letters.
'angel' with its initial letter removed is 'ngel'.
'work'+'can'+'lead'+'ngel'='workcanleadngel'
'workcanleadngel' with letters rearranged gives 'CARNAL KNOWLEDGE'.

(Another definition for carnal knowledge that I've seen is " It".)

I've seen this clue in The Independent.

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