Battels misused for MDMA consignment? (7)

I haven't cracked this one yet — but the brilliant team at Times for the Times have:

An anagram (misused) of BATTELS. In Oxford colleges (and  others among academe) battels are accounts rendered by kitchens and butteries (sic) for provisions, which sort of makes sense of the wording. MDMA is the drug Ecstasy.