Pain in the neck (5)
'pain in the neck' is the definition.
(irritant is a kind of pain in the neck)
This is the entire clue.
(Other definitions for irritant that I've seen before include "Cause of itch" , "Something that causes annoyance and bad temper" , "Annoying thing" , "distraction" , "Annoying factor" .)
'pain in the neck' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for crick that I've seen before include "Sort of cramp" , "Twist" , "Neck injury" , "Muscle spasm in the neck" , "Wrench (neck or back)" .)
'pain in the neck' is the definition.
(synonyms)
This is the entire clue.
(Other definitions for annoyance that I've seen before include "(Anger at) harassment" , "trouble" , "Pain" , "pest" , "Irritation, vexation" .)