Horrible new order for housemaid, wiping master's ... (7)
I believe the answer is:
hideous
'horrible' is the definition.
(I've seen this before)
'new order for housemaid wiping master's' is the wordplay.
'new order for' is an anagram indicator (I've seen this in other clues).
'wiping' suggests deleting specific letters.
'master' becomes 'ma' (Master of Arts).
'housemaid' with 'ma' removed is 'houseid'.
'houseid' anagrammed gives 'HIDEOUS'.
(Other definitions for hideous that I've seen before include "Repulsive" , "Extremely unpleasant" , "revolting" , "Frightful" , "Extremely ugly" .)