Poet, epic chap (10)

I believe the answer is:

longfellow

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'poet' is the definition.
(Henry Wadsworth Longfellow, 1807-1882)

'epic chap' is the wordplay.
'epic' becomes 'long' (I can't justify this - if you can you should give a lot more credence to this answer).
'chap' becomes 'fellow' (both can mean a man).
'long'+'fellow'='LONGFELLOW'

Can you help me to learn more?

(Other definitions for longfellow that I've seen before include "Song of_Hiawatha poet" , "American poet, author of 17" , "Hiawatha poet" .)

I've seen this clue in The Telegraph.

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