Disturbed the fish in different ways (6)
I believe the answer is:
shaken
'disturbed' is the definition.
(synonyms)
'fish in different ways' is the wordplay.
'fish' becomes 'hake' (hake is a kind of fish).
'in' indicates putting letters inside.
'different ways' becomes 'sn' (I can't explain this - if you can you should believe this answer much more).
'hake' going into 'sn' is 'SHAKEN'.
'the' is the link.
Can you help me to learn more?
(Other definitions for shaken that I've seen before include "Shocked; brandished" , "Jolted and shocked - like James Bond's martini?" , "Flourished" , "Agitated or disturbed" , "not left undisturbed" .)