The are served in many joints (5)

I believe the answer is:
chips
'the are served' is the definition.
I can't judge whether this defines the answer.
'many joints' is the wordplay.
'many' becomes 'c' (C is the Roman numeral for 100).
'joints' becomes 'hips' (hip is a kind of joint).
'c'+'hips'='CHIPS'
'in' is the link.
Can you help me to learn more?
(Other definitions for chips that I've seen before include "Fried potato strips" , "Goodbye, Mr -, novel" , "fried in 18 [MAIZE OIL] perhaps" , "Flakes" , "fast food?" .)
