Container holding Greek letter for someone from Lhasa? (7)
I believe the answer is:
tibetan
'from lhasa?' is the definition.
(I've seen this before)
'container holding greek letter' is the wordplay.
'container' becomes 'tin' (tin is a kind of container).
'holding' means one lot of letters goes inside another.
'greek letter' becomes 'beta' (letter from the Greek alphabet).
'tin' placed around 'beta' is 'TIBETAN'.
'for someone' is the link.
This may not be correct. Some or all of it may belong to another bit of the clue.
Can you help me to learn more?
(Other definitions for tibetan that I've seen before include "from high land" , "mountain man, say" , "Language giving us yak, sherpa and yeti" , "Former nationality of citizen of Lhasa" , "Oriental" .)