Appliance mixes her tea (6)
I believe the answer is:
heater
'appliance' is the definition.
The definition and answer can be both man-made objects as well as being singular nouns.
Maybe they are linked in a way I don't understand?
'mixes her tea' is the wordplay.
'mixes' indicates an anagram.
'her'+'tea'='hertea'
'hertea' is an anagram of 'HEATER'.
Can you help me to learn more?
(Other definitions for heater that I've seen before include "Source of warmth; gun" , "Radiator" , "fire" , "Warming device" , "Room warmer" .)