Crossword setter in ramshackle hut, down to make something with clues (8)
I believe the answer is:
whodunit
'something with clues' is the definition.
'crossword setter in ramshackle hut down' is the wordplay.
'crossword setter' becomes 'I' ('I' referring to the person who set the crossword).
'in' means one lot of letters goes inside another.
'ramshackle' indicates an anagram (I've seen this in other clues).
'hut'+'down'='hutdown'
'hutdown' with letters rearranged gives 'whodunt'.
'i' going within 'whodunt' is 'WHODUNIT'.
'to make' is the link.
(Other definitions for whodunit that I've seen before include "Murderer revealed at the end, US style" , "detective novel" , "American-style murder story" , "Crime story (colloq.)" , "Question commonly posed" .)