Strange love for a Doctor of Divinity (3)
I believe the answer is:
odd
'strange' is the definition.
(I've seen this in another clue)
'love for a doctor of divinity' is the wordplay.
'love' becomes 'o' (love means zero in tennis).
'for' means one lot of letters go next to another.
'a doctor of divinity' becomes 'DD' ('DD' can be a synonym of 'doctor of divinity').
'o'+'dd'='ODD'
(Other definitions for odd that I've seen before include "Peculiar or eccentric" , "Left over" , "Eccentric or unpaired" , "Unusual, strange" , "Unmatched" .)