Gut fish from right to left — still on this side? (7)
I believe the answer is:
leeward
'this side?' is the definition.
(leeward is a kind of side)
'gut fish from right to left still' is the wordplay.
'gut' says to hollow out the word (remove centre letters) (gut can mean to remove the insides of).
'fish' becomes 'eel' (eel is a type of fish).
'from right to left' says the letters should be written backwards.
'still' becomes 'eward' (I can't explain this - if you can you should give a lot more credence to this answer).
'eel' with its centre taken out is 'el'.
'el' in reverse letter order is 'le'.
'le'+'eward'='LEEWARD'
'on' is the link.
Can you help me to learn more?
(Other definitions for leeward that I've seen before include "Islands" , "Towards the sheltered side" , "Heading for shelter" , "Drew ale (anag.)" , "On sice turned away from wind" .)