Rascal with a strange love urge (5)
I believe the answer is:
rogue
'rascal' is the definition.
(both can mean a scoundrel)
'strange love urge' is the wordplay.
'strange' is an anagram indicator.
'love' becomes 'o' (love means zero in tennis).
'o'+'urge'='ourge'
'ourge' is an anagram of 'ROGUE'.
'with a' is the link.
(Other definitions for rogue that I've seen before include "One dishonest" , "Impish, likeable person" , "Diseased plant" , "Villain - freak" , "Scallywag" .)