Josh succeeded joining available Chinese course (5,4)
I believe the answer is:
spare ribs
'chinese course' is the definition.
(Chinese cuisine)
'josh succeeded joining available' is the wordplay.
'josh' becomes 'rib' (both can mean to mock or tease).
'succeeded' becomes 's' (genealogical abbreviation).
'joining' means one lot of letters go next to another.
'available' becomes 'spare' (going spare).
'rib'+'s'='ribs'
'ribs' after 'spare' is 'SPARE-RIBS'.
(Other definitions for spare ribs that I've seen before include "Supporters after free" , "barbecue bites" , "food" .)