Import from Chinese dynasty to include endless jeans (7)
I believe the answer is:
meaning
'import' is the definition.
('meaning' can be a synonym of 'import')
'chinese dynasty to include endless jeans' is the wordplay.
'chinese dynasty' becomes 'ming' (I've seen this before).
'to include' is an insertion indicator.
'endless' says to take the centre.
The middle of 'jeans' is 'ean'.
'ming' going around 'ean' is 'MEANING'.
'from' acts as a link.
(Other definitions for meaning that I've seen before include "Drift" , "Import; purpose" , "Definition (of 7 21?)" , "Purpose, intent" , "Import; intending" .)