Responsive to physical stimuli (9)

I believe the answer is:

sensitive

'responsive to physical stimuli' is the definition.
(I've seen this before)

This is the entire clue.

(Other definitions for sensitive that I've seen before include "Kept secret" , "Controversial" , "Delicate" , "Emotional or perceptive" , "Responsive to physical stimuli (9)" .)

I've seen this clue in The Irish Times.

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