Historic tribesman in epic troubles (4)

I believe the answer is:

pict

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'historic tribesman' is the definition.
The definition suggests a singular noun which matches the answer.

'in epic troubles' is the wordplay.
'in' indicates a hidden word.
'PICT' is hidden within 'epic troubles'.

Can you help me to learn more?

(Other definitions for pict that I've seen before include "Old Scot" , "Scotsman" , "N. British tribesman" , "Ancient north Briton" , "Ancient Scot in Roman times" .)

I've seen this clue in the Evening Standard.

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