Where the Canadians are possibly out of booze? (6)
I believe the answer is:
regina
'where the canadians' is the definition.
The answer is a location as well as being a singular noun. This is suggested by the definition.
'are possibly out of booze?' is the wordplay.
'possibly' is an anagram indicator.
'out of' means one lot of letters goes inside another (some letters on the outside of others).
'booze?' becomes 'gin' (gin is a kind of booze).
'are' is an anagram of 'rea'.
'rea' enclosing 'gin' is 'REGINA'.
Can you help me to learn more?
(Other definitions for regina that I've seen before include "Queen (Latin)" , "ER, Elizabeth ..." , "Queen (in law cases)" , "in Canada" , "Title of reigning Queen" .)