Humorous verse from the mid-West (8)
I believe the answer is:
limerick
'humorous verse from the mid-west' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for limerick that I've seen before include "Humorous verse of 5 lines" , "Irish county's produced" , "Humorous poem from the Treaty City?" , "Humorous short poem" , "Short amusing verse" .)