Love of fiance developed, taking time (9)
I believe the answer is:
affection
'love' is the definition.
(affection is a kind of love)
'of fiance developed taking time' is the wordplay.
'developed' indicates anagramming the letters.
'taking' is an insertion indicator.
'time' becomes 't'.
'of'+'fiance'='offiance'
'offiance' anagrammed gives 'affecion'.
'affecion' going around 't' is 'AFFECTION'.
(Other definitions for affection that I've seen before include "Warm regard" , "Fond attachment" , "Fondness, tenderness" , "Goodwill" , "Feeling of fondness" .)