Restricted area with monstrous bird in bottle (9)
I believe the answer is:
parochial
'restricted' is the definition.
(parochial can mean limited or restricted in views)
'area with monstrous bird in bottle' is the wordplay.
'area' becomes 'a' (maths abbreviation).
'with' says to put letters next to each other.
'monstrous bird' becomes 'roc' (mythical giant bird).
'in' means one lot of letters goes inside another.
'bottle' becomes 'phial' (phial is a kind of bottle).
'a'+'roc'='aroc'
'aroc' put within 'phial' is 'PAROCHIAL'.
(Other definitions for parochial that I've seen before include "Narrow in outlook" , "Having a narrow scope" , "Related to local area - narrow" , "rather restricted" .)