Romantic pass finally made before watershed? (9)
I believe the answer is:
coleridge
'romantic' is the definition.
(Romantic poet Samuel Taylor Coleridge)
'pass finally made before watershed?' is the wordplay.
'pass' becomes 'col' (col is a term for a mountain pass).
'finally' suggests the final letters.
'before' is a charade indicator (letters next to each other).
'watershed?' becomes 'ridge' (a watershed is a ridge of land in water).
The final letter of 'made' is 'e'.
'col'+'e'+'ridge'='COLERIDGE'
(Other definitions for coleridge that I've seen before include "Samuel Taylor . . . . . . . . ., eminent poet" , "Exponent of art" , "English poet" , "Poet, author of the 9 19" , "Ancient Mariner poet" .)