Land part in 'Diamond Lil' (5)
I believe the answer is:
india
'land' is the definition.
(I know that India is Asian country)
'part in diamond lil' is the wordplay.
I cannot really see how this works, but
'part' could be 'in' (synonyms) and 'in' is found in the answer.
The remaining letters 'dia' is a valid word which might be clued in a way I don't see.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for india that I've seen before include "Asian sub-continent" , "The world's most populous democracy" , "Land of Bombay and Calcutta" , "Nation, I (radio comms.)" , "Gandhi's country" .)