Little swimmer that can also do the crawl? (3)
I believe the answer is:
eft
'little swimmer' is the definition.
(term for a newt)
'can also do the crawl?' is the wordplay.
I cannot really understand how this works, but
'the' could be 't' (the is pronounced as a 't' sound in some dialects) and 't' is present in the answer.
The remaining letters 'ef' is a valid word which might be clued in a way I don't see.
This explanation may well be incorrect...
'that' is the link.
Can you help me to learn more?
(Other definitions for eft that I've seen before include "Kind of newt found in clefts" , "Juvenile twenty-three Ac; rhymes with sinister" , "Young newt" , "Slimy creature" , "Juvenile newt" .)