Throw out of an inn, perhaps detective's watering hole (6)
I believe the answer is:
disbar
'throw out' is the definition.
'detective's watering hole' is the wordplay.
'detective's' becomes 'dis' (Detective Inspector abbreviation).
'watering hole' becomes 'bar' (I've seen this before).
'dis'+'bar'='DISBAR'
'of an inn perhaps' acts as a link.
This may not be right. Some or all of it may be part of another bit of the clue.
(Other definitions for disbar that I've seen before include "Expel from the practice of law" , "Disqualify from practising law" , "Deprive barrister of the right to practise law" , "Deprive of the rights of a barrister" , "Ban" .)