Naughtier lad cavorting with younger relative? (8-2-3)

I believe the answer is:

daughter-in-law

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'younger relative?' is the definition.
'daughter in law' can be an answer for 'relative?' (I've seen this before). I'm unsure of the 'younger' bit.

'naughtier lad cavorting with' is the wordplay.
'cavorting' indicates an anagram.
'with' becomes 'w' (short for with).
'naughtier'+'lad'='naughtierlad'
'naughtierlad' anagrammed gives 'daughterinla'.
'daughterinla'+'w'='DAUGHTER-IN-LAW'

Can you help me to learn more?

(Other definitions for daughter-in-law that I've seen before include "Female relative by marriage" , "Woman married to one's child" , "One's son's wife" .)

I've seen this clue in The Times.

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