Porcelain in perfect condition available to order (6)
I believe the answer is:
minton
'porcelain' is the definition.
(porcelain made by the company Mintons)
'perfect condition available to order' is the wordplay.
I cannot really see how this works, but
'perfect' could be 'mint' (as in mint condition) and 'mint' is present in the answer.
'available' could be 'on' (on can mean activated or available) and 'on' is found within the answer.
This accounts for all the letters.
This explanation may well be incorrect...
'in' is the link.
Can you help me to learn more?
(Other definitions for minton that I've seen before include "English pottery company" , "Pottery firm" , "ceramicist" , "Stoke china" .)