What a toaster may hold (5)
I believe the answer is:
stein
'what a toaster may hold' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for stein that I've seen before include "Gertrude __, avant-garde US author, d. 1946" , "Large earthenware beer mug" , "German tankard" , "Gertrude ---; US writer" , "Earthenware beer jug" .)