Boozer in this location -- ha! (2,5)
I believe the answer is:
so there
'ha' is the definition.
I don't know anything about this answer so I cannot judge whether it can be defined by this definition.
'boozer in this location' is the wordplay.
'boozer' becomes 'sot' (both can mean someone who drinks a lot).
'in this location' becomes 'here' (I've seen this in another clue).
'sot'+'here'='SO THERE'
Can you help me to learn more?
(Other definitions for so there that I've seen before include "Expression of defiance" , "message of defiance" , "defiant expression" , "What are you going to do about that" , "Derisive expression" .)