Corridor is drenched in beer (5)
I believe the answer is:
aisle
'corridor' is the definition.
(I've seen this before)
'is drenched in beer' is the wordplay.
I cannot quite see how this works, but
'is' is within the answer.
'beer' could be 'ale' (type of beer) and 'ale' is located in the remaining letters.
No letters remain.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for aisle that I've seen before include "Path between seats in church" , "Passages between seating areas" , "Passageway in theatre" , "channel" , "Part of a church" .)