I love going through the new duets. You’ll find it’s boring (7)
I believe the answer is:
tedious
'it's boring' is the definition.
(synonyms)
'i love going through the new duets' is the wordplay.
'love' becomes 'o' (love means zero in tennis).
'going through' indicates putting letters inside.
'the new' indicates anagramming the letters.
'i'+'o'='io'
'duets' anagrammed gives 'tedus'.
'io' put within 'tedus' is 'TEDIOUS'.
'you'll find' acts as a link.
(Other definitions for tedious that I've seen before include "not exciting" , "Boring, monotonous" , "drab" , "Humdrum" , "Wearisome, boring" .)