Social worker carrying record player to a church next-door (8)
I believe the answer is:
adjacent
'next-door' is the definition.
(I've seen this before)
'social worker carrying record player to a church' is the wordplay.
'social worker' becomes 'ant' (I've seen this before).
'carrying' means one lot of letters goes inside another.
'record player' becomes 'dj'.
'to' is a charade indicator (letters next to each other).
'church' becomes 'CE' (abbreviation for Church of England).
'dj'+'a'+'ce'='djace'
'ant' placed around 'djace' is 'ADJACENT'.
(Other definitions for adjacent that I've seen before include "Near - juxtaposed" , "Lying near, bordering" , "Abutting" , "Alongside" , "cheek by jowl" .)