Banish indigestion -- take a dose of this and hop (7)
I believe the answer is:
shindig
'hop' is the definition.
(thesaurus)
'banish indigestion take' is the wordplay.
'banish indigestion' becomes 'shin' (I can't explain this - if you can you should believe this answer much more).
'take' becomes 'dig' (digging is a kind of taking).
'shin'+'dig'='SHINDIG'
'a dose of this and' acts as a link.
This may not be correct. Some or all of it may be part of another bit of the clue.
Can you help me to learn more?
(Other definitions for shindig that I've seen before include "Lively celebration (informal)" , "Large and noisy party or quarrel" , "Large, lively party" , "Noisy knees-up" , "Hidings (anag) - party" .)