Maybe Scouse son returned tearful (4)
I believe the answer is:
stew
'maybe scouse' is the definition.
I can't tell whether this definition defines the answer.
'son returned tearful' is the wordplay.
'son' becomes 's'.
'returned' is a reversal indicator.
'tearful' becomes 'wet' (I can't explain this - if you can you should believe this answer much more).
'wet' backwards is 'tew'.
's'+'tew'='STEW'
Can you help me to learn more?
(Other definitions for stew that I've seen before include "Cook by simmering slowly" , "Lazy person" , "Meat and veg dish" , "Agitation; food" , "anxious state" .)