Some of their kinkiness can be annoying (3)
I believe the answer is:
irk
'some of their kinkiness can be annoying' is the definition.
I can't judge whether this defines the answer.
'some of their kinkiness can' is the wordplay.
'some of' indicates the answer is hidden within the clue.
'IRK' is hidden within 'their kinkiness can'.
Can you help me to learn more?
(Other definitions for irk that I've seen before include "English river" , "upset" , "Annoy, bother" , "Wind up" , "Bug" .)