Love dreary perfume (5)
I believe the answer is:
odour
'perfume' is the definition.
(I've seen this before)
'love dreary' is the wordplay.
'love' becomes 'o' (In tennis, 'love' means 'zero').
'dreary' becomes 'dour' (I've seen this before).
'o'+'dour'='ODOUR'
(Other definitions for odour that I've seen before include "Smell; repute" , "essence" , "Aroma or fragrance" , "A smell, good or bad" , "Distinctive smell" .)