China's leader ignored garden feature (7)
I believe the answer is:
rockery
'garden feature' is the definition.
(I've seen this before)
'china's leader ignored' is the wordplay.
'china' becomes 'crockery' (I've seen this before).
'leader ignored' means to remove the first letter.
'crockery' with its first letter taken away is 'ROCKERY'.
(Other definitions for rockery that I've seen before include "Part of garden" , "Garden alpine area" , "Garden feature with alpines" .)