House built quickly yards from quarry cracking (6)
I believe the answer is:
prefab
'house' is the definition.
(I have seen 'Temporary house ' mean 'prefab' so perhaps 'house' could also mean 'prefab')
I don't understand how the remainder of the clue works.
Can you help me to learn more?
(Other definitions for prefab that I've seen before include "British inter-war temporary housing, popularly called" , "Structure made in one place and placed elsewhere, in short" , "Type of house" , "Building up, quickly" , "Temporary building" .)