That poetic Shropshire chap? (3)
I believe the answer is:
lad
'chap?' is the definition.
(I know that chap can be written as lad)
I can't explain the rest of the clue.
Can you help me to learn more?
(Other definitions for lad that I've seen before include "Chap, fellow" , "A young chap into ballads" , "Shaver" , "(Housman's Shropshire) boy" , "Youngster" .)