The twit having morning tea comes from there (5)
I believe the answer is:
assam
'tea comes from there' is the definition.
I can't judge whether this defines the answer.
'the twit having morning' is the wordplay.
'the twit' becomes 'ass' (I've seen this in another clue).
'having' is a charade indicator (letters next to each other).
'morning' becomes 'am' (as in 12:00 AM).
'ass'+'am'='ASSAM'
Can you help me to learn more?
(Other definitions for assam that I've seen before include "Indian province" , "North-east Indian tea state" , "N East Indian state?" , "State in northeastern India" , "Tea-growing region" .)