Bubbly people in tents keeping hot (8)
I believe the answer is:
champers
'bubbly' is the definition.
(I've seen this before)
'in tents keeping hot' is the wordplay.
'in' indicates putting letters inside.
'tents' becomes 'camp'.
'keeping' becomes 'ers' (I am not sure about this - if you are sure you should believe this answer much more).
'hot' becomes 'h' (abbreviation eg on taps).
'camp'+'ers'='campers'
'campers' enclosing 'h' is 'CHAMPERS'.
'people' is the link.
I am not very happy about this link. It may be part of another bit of the clue.
Can you help me to learn more?
(Other definitions for champers that I've seen before include "Drink casually" , "People putting their teeth in" , "People who eat" , "Kind of sparkling wine (slang)" , "Might they be extremely eager" .)