Some crockery I’d upset: don’t say a word! (4)
I believe the answer is:
dish
'some crockery' is the definition.
(dish is a kind of crockery)
'i'd upset don't say a word' is the wordplay.
'upset' says the letters should be written in reverse.
'don't say a word' becomes 'sh'.
'id' written backwards gives 'di'.
'di'+'sh'='DISH'
(Other definitions for dish that I've seen before include "Lovely" , "Gorgeous person - plate" , "Satellite aerial" , "stunner?" , "Person who's smashing" .)