How might one assist swimmer after dip? Give up (5,2,3,5)
I believe the answer is:
throw in the towel
'give up' is the definition.
(synonyms)
'how might one assist swimmer after dip?' is the wordplay.
I cannot quite see how this works, but
'one' could be 'the' (both can introduce a definite example of something) and 'the' is located in the answer.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for throw in the towel that I've seen before include "admit defeat" , "Withdraw" , "Cave in" , "charge nothing for additional item" , "surrender after trading blows?" .)