Pub concerned with large container for beer? (6)
I believe the answer is:
barrel
'large container for beer?' is the definition.
(I've seen this before)
'pub concerned' is the wordplay.
'pub' becomes 'bar' (both are drinking establishments).
'concerned' becomes 'rel' (I can't explain this - if you can you should believe this answer much more).
'bar'+'rel'='BARREL'
'with' acts as a link.
Can you help me to learn more?
(Other definitions for barrel that I've seen before include "Beer/oil container" , "Curved wooden vessel" , "VAT?" , "Container for beer etc" , "Wood vessel; part of horse" .)