Makes sense, getting a religious man to dine (4,2)
I believe the answer is:
adds up
'makes sense' is the definition.
('add up' can be a synonym of 'make sense')
'a religious man to dine' is the wordplay.
'religious man' becomes 'DD' (abbreviation for Doctor of Divinity degree).
'to dine' becomes 'sup' (synonyms).
'a'+'dd'+'sup'='ADDS UP'
'getting' is the link.
(Other definitions for adds up that I've seen before include "Puts two and two together" , "Sums - makes sense" , "Totals" , "Stands to reason" , "Reckons" .)