Fish that can travel on ice? (5)
I believe the answer is:
skate
'fish' is the definition.
(skate is a kind of fish)
'can travel on ice?' is the wordplay.
I cannot really understand how this works, but
'on' could be 'at' (I've seen this in other clues) and 'at' is found in the answer.
This may be the basis of the clue (or it may be nonsense).
'that' acts as a link.
Can you help me to learn more?
(Other definitions for skate that I've seen before include "A ray; slide smoothly" , "cross ice" , "Cartilaginous fish" , "Lasso" , "move around ice" .)