Anyone working to bring about an opening for chaos and irritation (9)
I believe the answer is:
annoyance
'irritation' is the definition.
(I know that irritation can be written as annoyance)
'anyone working to bring about an opening for chaos' is the wordplay.
'working' indicates an anagram.
'to' means one lot of letters go next to another (I've seen this in other clues).
'bring' becomes 'an' (I can't explain this - if you can you should believe this answer much more).
'about' means one lot of letters goes inside another.
'an opening for' suggests taking the first letters.
The first letter of 'chaos' is 'c'.
'anyone' with letters rearranged gives '[anyone]'.
'[anyone]' after 'an' is 'an[anyone]'.
'annoyane' going around 'c' is 'ANNOYANCE'.
'and' acts as a link.
Can you help me to learn more?
(Other definitions for annoyance that I've seen before include "Pain" , "pest" , "trouble" , "Nuisance" , "(Anger at) harassment" .)