Wagon driver and Mary got frisky (7)

I believe the answer is:

drayman

I'm a little stuck... Click here to teach me more about this clue!

'wagon driver' is the definition.
'drayman' can be an answer for 'driver' (thesaurus). I'm not sure about the 'wagon' bit.

'and mary got frisky' is the wordplay.
'got frisky' indicates an anagram (I've seen 'getting frisky' mean this).
'and'+'mary'='andmary'
'andmary' is an anagram of 'DRAYMAN'.

Can you help me to learn more?

(Other definitions for drayman that I've seen before include "Carter" , "Horse-drawn cart driver" .)

I've seen this clue in The Independent.

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