Pottery sensible about opening (9)

I believe the answer is:

agateware

'pottery' is the definition.
(agateware is a kind of pottery)

'sensible about opening' is the wordplay.
'sensible' becomes 'aware' (associated in meaning).
'about' indicates putting letters inside.
'opening' becomes 'gate' (a gate is an opening or entrance).
'aware' enclosing 'gate' is 'AGATEWARE'.

(Another definition for agateware that I've seen is " ceramics".)

I've seen this clue in The Times.

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