Name on some underwear (5)
I believe the answer is:
klein
'name on some underwear' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for klein that I've seen before include "no capacity for the bottle?" , "French artist" , "Psychoanalyst" , "A -- bottle is a closed surface with just one side" , "Person of bottle" .)