Shows up in empty Epsom watering hole with right idiots (11)
I believe the answer is:
embarrasses
'shows up' is the definition.
(I've seen this before)
'empty epsom watering hole with right idiots' is the wordplay.
'empty' says to hollow out the word (remove centre letters).
'watering hole' becomes 'bar' (watering hole can mean a drinking establishment).
'with' means one lot of letters go next to another.
'right' becomes 'r' (common abbreviation).
'idiots' becomes 'asses' (I've seen this before).
'epsom' with its middle taken out is 'em'.
'em'+'bar'+'r'+'asses'='EMBARRASSES'
'in' is the link.
(Another definition for embarrasses that I've seen is " shows up".)