Passable food tucked into by partygoers (11)
I believe the answer is:
traversable
'passable' is the definition.
(similar in meaning)
'into by partygoers' is the wordplay.
'into' means one lot of letters goes inside another.
'by' becomes 'table' (I can't justify this - if you can you should give a lot more credence to this answer).
'partygoers' becomes 'ravers' (people attending a rave).
'table' enclosing 'ravers' is 'TRAVERSABLE'.
'food tucked' is the link.
This may not be correct. Some or all of it may belong to another bit of the clue.
Can you help me to learn more?
(Other definitions for traversable that I've seen before include "that may be gone over" , "that can be covered" .)