Asian person tampered with appliance leaving cap off (6)
I believe the answer is:
nepali
'asian' is the definition.
(from Nepal)
'appliance leaving cap off' is the wordplay.
'leaving' suggests deleting specific letters.
'off' indicates an anagram.
'appliance' with 'cap' taken out is 'pliane'.
'pliane' with letters rearranged gives 'NEPALI'.
'person tampered with' acts as a link.
This may not be correct. Some or all of it may be part of another bit of the clue.
Can you help me to learn more?
(Other definitions for nepali that I've seen before include "One from Katmandu" , "one found in mountainous region" , "Language of Kathmandu" , "Native of a mountainous Hindu kingdom" , "Foreigner" .)