Highwayman upset and he took fright (6,2,3,4)

I believe the answer is:

knight of the road

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'highwayman' is the definition.
I know nothing about this answer so I cannot tell whether it can be defined by this definition.

'upset and he took fright' is the wordplay.
'upset' is an anagram indicator.
'and'+'he'+'took'+'fright'='andhetookfright'
'andhetookfright' anagrammed gives 'KNIGHT OF THE ROAD'.

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(Other definitions for knight of the road that I've seen before include "Commercial traveller" , "who held other travellers up?" , "Trucker" , "causing hold-up on journey?" .)

I've seen this clue in The Telegraph.

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