China has many an ornamental garden (8)
I believe the answer is:
crockery
'china' is the definition.
(I've seen this before)
'many an ornamental garden' is the wordplay.
I cannot quite understand how this works, but
'many' could be 'c' (C is the Roman numeral for 100) and 'c' is found within the answer.
'garden' could be 'rockery' (rockery is a kind of garden) and 'rockery' is located in the answer.
No letters remain.
This may be the basis of the clue (or it may be nonsense).
'has' is the link.
Can you help me to learn more?
(Other definitions for crockery that I've seen before include "Tableware" , "China pieces" , "Cups, plates etc" , "Cups, saucers, etc" , "Chinaware" .)