Fifth Beatle drops off record for Gertrude? (5)
I believe the answer is:
stein
'gertrude?' is the definition.
(I've seen this before)
I don't understand how the rest of the clue works.
Can you help me to learn more?
(Other definitions for stein that I've seen before include "Large earthenware beer mug" , "Inset into earthenware mug for beer" , "Inset (anag.)" , "Beer-mug" , "German tankard" .)