A kiss cut short to show affection for one that may be related (8)
I believe the answer is:
anecdote
'one that may be related' is the definition.
Although both the answer and definition are singular nouns, I cannot see how they can define each other.
'a kiss cut short to show affection for' is the wordplay.
'kiss' becomes 'neck' (I've seen this before).
'cut short' means to remove the last letter.
'to show affection for' becomes 'dote' (I've seen this before).
'neck' with its final letter taken off is 'nec'.
'a'+'nec'+'dote'='ANECDOTE'
Can you help me to learn more?
(Other definitions for anecdote that I've seen before include "Pithy account of an incident" , "Date once (anag.)" , "Short and amusing/interesting story" , "Reminiscence, story" , "A short amusing story, probably true" .)