Loves anagrams to crack (5)
I believe the answer is:
solve
'to crack' is the definition.
(crack can mean to solve or decipher)
'loves anagrams' is the wordplay.
'anagrams' indicates anagramming the letters (I've seen 'anagram of' mean this).
'loves' with letters rearranged gives 'SOLVE'.
(Other definitions for solve that I've seen before include "Voles (anag.)" , "Find the answer or explanation" , "as you're trying to do now" , "Person living voluntarily outside their own country" , "Unravel (a problem)" .)