Stumped by labours? Not with those delivering babies! (6)
I believe the answer is:
storks
'those delivering babies' is the definition.
I can't tell whether this defines the answer.
'stumped by labours? not with' is the wordplay.
'stumped by' becomes 'st' (cricket abbreviation. I am not sure about the 'by' bit.).
'labours?' becomes 'works' (labouring is a kind of working).
'not' suggests deleting specific letters.
'with' becomes 'w' (abbreviation).
'works' with 'w' removed is 'orks'.
'st'+'orks'='STORKS'
Can you help me to learn more?
(Other definitions for storks that I've seen before include "Black and white wading birds" , "Long-legged baby-carrying birds" , "Baby carriers!" , "Wading birds that bring babies" , "Wading birds with large bills" .)