Easily nauseated (9)
I believe the answer is:
squeamish
'easily nauseated' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for squeamish that I've seen before include "Easily shocked - fastidious" , "Fastidious and easily disgusted" , "Queasy" , "Easily upset" , "Easily shocked by blood and gore" .)