Community subject in an abnormal position (7)
I believe the answer is:
ectopic
'in an abnormal position' is the definition.
(I've seen this before)
'community subject' is the wordplay.
'community' becomes 'ec'.
'subject' becomes 'topic' ('topic' can be a synonym of 'subject'**).
'ec'+'topic'='ECTOPIC'
(Other definitions for ectopic that I've seen before include "In an unusual situation" , "unusual pregnancy" , "out of place" , "In an abnormal position" .)