A hen will have a fiasco in America (3,2,3)
I believe the answer is:
lay an egg
'have a fiasco in america' is the definition.
I don't know anything about this answer so I can't tell whether this works.
'a hen' is the wordplay.
I cannot really see how this works, but
'a' could be 'an' and 'an' is found in the answer.
This explanation may well be incorrect...
'will' is the link.
Can you help me to learn more?
(Other definitions for lay an egg that I've seen before include "Do what hens do" , "Fail, flop (mainly US)" .)