What China offers last boat after end of week at work (10)
I believe the answer is:
friendship
'what china offers' is the definition.
(china plate is Cockney rhyming slang for friend)
'last boat after end of week at work' is the wordplay.
'last' becomes 'end'.
'boat' becomes 'ship' (I've seen this before).
'after' says to put letters next to each other.
'end of week at work' becomes 'fri' (abbreviation for Friday, end of the working week).
'end'+'ship'='endship'
'endship' put after 'fri' is 'FRIENDSHIP'.
(Other definitions for friendship that I've seen before include "Relation between mates" , "Amity" , "camaraderie" .)