When head's removed, touch fish (3)
I believe the answer is:
eel
'fish' is the definition.
(I know that eel is a type of fish)
'when head's removed touch' is the wordplay.
I cannot quite understand how this works, but
'when' could be 'e' (I've seen this in other clues) and 'e' is present in the answer.
The remaining letters 'el' is a valid word which might be clued in a way I don't understand.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for eel that I've seen before include "Long thin fish" , "Slippery type" , "Wriggly fish" , "Slippery swimmer (may be jellied)" , "Fish in the Lee?" .)