Disturbed to find it’s not fixed (9)
I believe the answer is:
unsettled
'disturbed' is the definition.
(I've seen this before)
'it's not fixed' is the wordplay.
'it's not' becomes 'un' (I've seen this in other clues).
'fixed' becomes 'settled' (I can't justify this - if you can you should give a lot more credence to this answer).
'un'+'settled'='UNSETTLED'
'to find' acts as a link.
Can you help me to learn more?
(Other definitions for unsettled that I've seen before include "Troubled" , "Devoid of colonists" , "Missing work by composer, perhaps" , "Liable to change or upset" , "Still to confirm" .)