Place is terribly particular (7)
I believe the answer is:
special
'particular' is the definition.
(I know that particular can be written as special)
'place is terribly' is the wordplay.
'terribly' indicates an anagram.
'place'+'is'='placeis'
'placeis' is an anagram of 'SPECIAL'.
(Other definitions for special that I've seen before include "Dish not on main menu" , "Distinct from and usually better" , "Remarkable" , "Exceptional or particular" , "Out of the ordinary, singular" .)