Kinsey essentially refers to story describing people unwilling to be parted (11)
I believe the answer is:
inseparable
'parted' is the definition.
Both the answer and definition are adjectives. Perhaps you can see an association between them that I can't see?
'kinsey essentially refers to story describing people unwilling' is the wordplay.
I cannot quite see how this works, but
'essentially' could be 'inse' (I've seen this before) and 'inse' is found within the answer.
'story' could be 'parable' (parable is a kind of story) and 'parable' is found in the answer.
This accounts for all the letters.
This explanation may well be incorrect...
'to be' is the link.
Can you help me to learn more?
(Other definitions for inseparable that I've seen before include "Very friendly, close" , "Devoted" .)