Want touch of romance in the end (6)
I believe the answer is:
dearth
'want' is the definition.
(both can mean a lack or scarcity)
'touch of romance in the end' is the wordplay.
'touch of' indicates taking the first letters.
'in' is an insertion indicator.
'the end' becomes 'death' (the end of a life).
The first letter of 'romance' is 'r'.
'r' placed inside 'death' is 'DEARTH'.
(Other definitions for dearth that I've seen before include "From shortage of food" , "Acute shortage" , "Scarcity - lack" , "Hatred (anag) -- shortage" , "Shortage, paucity" .)