Affectionate uttering of a tender name, perhaps (10)
I believe the answer is:
endearment
'affectionate uttering' is the definition.
I can't judge whether this defines the answer.
'a tender name perhaps' is the wordplay.
'perhaps' indicates anagramming the letters.
'tender'+'name'='tendername'
'tendername' is an anagram of 'ENDEARMENT'.
'of' acts as a link.
Can you help me to learn more?
(Other definitions for endearment that I've seen before include "Word of affection" , "Expression of love" , "Pet name" , "Love, maybe" , "Term of affection" .)