Affection (10)
There are a few possibilities for this:
'affection' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for endearment that I've seen before include "Word of affection" , "Fondness" , "Affectionate term" , "Expression of love" , "Affectionate word" .)
'affection' is the definition.
(I know that affection can be written as tenderness)
This is the entire clue.
(Other definitions for tenderness that I've seen before include "Gentle quality" , "sore?" , "Heart" , "Compassion" , "Gentleness, sensitivity" .)
'affection' is the definition.
(I know that attachment is a type of affection)
This is all the clue.
(Other definitions for attachment that I've seen before include "Affinity" , "Fondness" , "what often comes with spam?" , "Affection" , "communicated via e-mail" .)
'affection' is the definition.
(I know that warmth is a type of caring)
This is the entire clue.
(Other definitions for warmth that I've seen before include "Mild heat" , "Pleasant heat" , "Possibly fire" , "Feeling" , "Cosiness or enthusiasm" .)
'affection' is the definition.
(I know that affection can be written as fondness)
This is all the clue.
(Other definitions for fondness that I've seen before include "Affection" , "Liking (for something)" .)