Intuitive feeling in search unchanged (5)
I believe the answer is:
hunch
'intuitive feeling' is the definition.
(I've seen this before)
'in search unchanged' is the wordplay.
'in' indicates the answer is hidden within the clue.
'HUNCH' is hidden within 'search unchanged'.
(Other definitions for hunch that I've seen before include "Bend over" , "Idea based on intuition" , "Intuitive guess" , "Vague suspicion" , "Lump - intuitive feeling" .)