Avoid worst innings (4)
I believe the answer is:
duck
This clue might be a double definition.
'avoid' is the first definition.
(duck can mean to avoid)
'worst innings' is the second definition.
Although both the answer and definition are singular nouns, I can't understand how one could define the other.
Can you help me to learn more?
(Other definitions for duck that I've seen before include "Eg, eider; get down" , "Avoid (tricky question)" , "Cringe maybe" , "Swimming bird" , "Bob" .)