The quirky part will be somewhat annoying (3)
I believe the answer is:
irk
'will be somewhat annoying' is the definition.
I can't tell whether this definition defines the answer.
'the quirky part' is the wordplay.
'part' indicates the answer is hidden within the clue.
'IRK' is hidden in the letters of 'quirky'.
Can you help me to learn more?
(Other definitions for irk that I've seen before include "Irritate, annoy" , "English river" , "Severely annoy" , "Annoy, bother" , "cause annoyance" .)