Showers affection (on) (5)
I believe the answer is:
dotes
'showers affection on' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for dotes that I've seen before include "Shows excessive love" , "Showers with love" , "Showers affection on" , "Shows great fondness, perhaps for spouse" , "-- on, adores" .)