Thanks for order in bar
I believe the answer is:
taproom
'bar' is the definition.
('taproom' can be a synonym of 'bar')
'thanks for order' is the wordplay.
'thanks' becomes 'ta' (UK informal version of 'thank you').
'for' becomes 'pro' (I've seen this before).
'order' becomes 'om' (order of merit).
'ta'+'pro'+'om'='TAPROOM'
'in' is the link.
(Other definitions for taproom that I've seen before include "part of pub" , "Source of beer" , "Type of bar" , "liquor shop" , "Hotel bar" .)