At home, somehow aid new ambassador and politician to get fibre (6,4)
I believe the answer is:
indian hemp
'politician to get fibre' is the definition.
I can't tell whether this definition defines the answer.
'at home somehow aid new ambassador' is the wordplay.
'at home' becomes 'in' ('I'm in' can mean 'I'm at home').
'somehow' indicates an anagram.
'new' becomes 'n' (common abbreviation eg NT for New Testament).
'ambassador' becomes 'hemp' (I can't explain this - if you can you should believe this answer much more).
'aid' is an anagram of 'dia'.
'in'+'dia'+'n'+'hemp'='INDIAN HEMP'
'and' acts as a link.
Can you help me to learn more?
(Other definitions for indian hemp that I've seen before include "cannabis supplier" , "familiar to ropemaker?" , "used as source of drugs" , "Pot plant" .)