Perfume showing warm-hearted love for mother (5)
I believe the answer is:
aroma
'perfume' is the definition.
('aroma' can be a synonym of 'perfume')
'warm-hearted love for mother' is the wordplay.
'hearted' means to look at the middle letters.
'love for' becomes 'o' (I've seen this in other clues).
'mother' becomes 'ma' (ma is a kind of mother).
The middle letters of 'warm' are 'ar'.
'ar'+'o'+'ma'='AROMA'
'showing' is the link.
(Other definitions for aroma that I've seen before include "Savour" , "Nose" , "A pleasant smell as of food" , "Pervasive quality" , "Scent - smell" .)