China sent in Red Engineers (6,3)
I believe the answer is:
dinner set
'china' is the definition.
(I've seen this before)
'sent in red engineers' is the wordplay.
'engineers' indicates an anagram (I've seen 'engineer' mean this).
'sent'+'in'+'red'='sentinred'
'sentinred' is an anagram of 'DINNER-SET'.
(Other definitions for dinner set that I've seen before include "Plates etc" , "Table service" , "China" , "crockery" , "Complete service of plates and dishes for a meal" .)