Stupid tavern has a point (5)
I believe the answer is:
inane
'stupid' is the definition.
(I've seen this before)
'tavern has a point' is the wordplay.
'tavern' becomes 'inn' (I've seen this in another clue).
'has' means one lot of letters goes inside another.
'point' becomes 'E' (compass point).
'inn' going around 'a' is 'inan'.
'inan'+'e'='INANE'
(Other definitions for inane that I've seen before include "Puerile" , "Vacuous, silly" , "Witless and pointless" , "Empty" , "Empty-headed" .)