Love article in knitted sweater (10)
I believe the answer is:
sweetheart
'love' is the definition.
(I've seen this before)
'article in knitted sweater' is the wordplay.
'article' becomes 'the' (the definite article).
'in' is an insertion indicator.
'knitted' indicates anagramming the letters (knit can mean to screw up or crease).
'sweater' is an anagram of 'sweeart'.
'the' going within 'sweeart' is 'SWEETHEART'.
(Other definitions for sweetheart that I've seen before include "Darlin'"" , "flame?" , "Lover" , "Love" , "ducks" .)