Call we hear to help with the laundry (5)
I believe the answer is:
wring
'with the laundry' is the definition.
Although both the answer and definition are singular nouns, I don't see how one could define the other.
'call we hear' is the wordplay.
'call' becomes 'ring' (synonyms).
'we hear' shows a homophone (sound like).
'ring' is a homophone of 'WRING'.
'to help' acts as a link.
Can you help me to learn more?
(Other definitions for wring that I've seen before include "Twist and compress" , "Squeeze liquid from" , "Squeeze water out of" , "Extort; wrest" , "Squeeze moisture (from)" .)