After church I'll relax (5)
I believe the answer is:
chill
'relax' is the definition.
(I've seen this before)
'after church i'll' is the wordplay.
'after' means one lot of letters go next to another.
'church' becomes 'ch' (abbreviation on maps etc).
'ch' put next to 'ill' is 'CHILL'.
(Other definitions for chill that I've seen before include "This disheartens" , "Sharp cold" , "A feeling of coldness" , "Make cold; relax" , "Refrigerate" .)