Moose Miller’s type of house (4)
I believe the answer is:
'moose miller's type of house' is the definition.
I can't judge whether this definition defines the answer.
'moose miller's type of house' is the wordplay.
'of house' indicates the answer is hidden within the clue (I've seen 'houses' mean this (part of the clue houses the answer)).
'SEMI' can be found hidden inside 'moose miller type'.
Can you help me to learn more?
(Other definitions for semi that I've seen before include "House linked to another", "accommodation", "Style of house", "Dwelling", "Prefix meaning half or partly".)