Decide on making change of direction - and get annoyed? (6)
I believe the answer is:
nettle
'decide on making change' is the definition.
I can't judge whether this defines the answer.
'direction and get annoyed?' is the wordplay.
'direction' becomes 'N' (compass direction north).
'and' is a charade indicator (letters next to each other).
'get annoyed?' becomes 'ettle' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'n'+'ettle'='NETTLE'
'of' acts as a link.
Can you help me to learn more?
(Other definitions for nettle that I've seen before include "Plant with stinging hairs" , "Annoy - stinger" , "Irritate - weed" , "Growing" , "Wild plant - annoy" .)