Some panic here in specialised part of the market (5)
I believe the answer is:
niche
'specialised part of the market' is the definition.
'some panic here in' is the wordplay.
'some' indicates the answer is hidden within the clue (some of the parts of the word are used).
'NICHE' is hidden within 'panic here in'.
(Other definitions for niche that I've seen before include "Cosy spot" , "Small recess or cranny" , "Recess - alcove" , "A small recess or easy job" , "hole" .)