Hurry to get these fish on (6)
I believe the answer is:
skates
'hurry to' is the definition.
I can't judge whether this defines the answer.
'these fish on' is the wordplay.
'these' becomes 's' (I can't justify this - if you can you should give a lot more credence to this answer).
'fish' becomes 'skate' (skate is a kind of fish).
'on' is a charade indicator (letters next to each other).
's' after 'skate' is 'SKATES'.
'get' is the link.
Can you help me to learn more?
(Other definitions for skates that I've seen before include "things to wear on the feet" , "Wear for rink" , "Large edible fish, worn on the feet?" , "fishes" , "Fish, moves on ice" .)