Run after husband when entering church (5)
I believe the answer is:
chase
'run after' is the definition.
(thesaurus)
'husband when entering church' is the wordplay.
'husband' becomes 'h'.
'when' becomes 'as'.
'entering' indicates putting letters inside.
'church' becomes 'ce' (abbreviation for Church of England).
'h'+'as'='has'
'has' placed into 'ce' is 'CHASE'.
(Other definitions for chase that I've seen before include "Pursue; decorate (metal) by engraving" , "Pursue, run after" , "groove" , "Hound" , "trail" .)