German to admit to dress (4)
I believe the answer is:
gown
'to dress' is the definition.
(I know that apparel is a is a kind of of gown)
'german to admit' is the wordplay.
'german' becomes 'g' (abbreviation).
'to admit' becomes 'own' (own can mean to admit or acknowledge).
'g'+'own'='GOWN'
(Other definitions for gown that I've seen before include "Shift" , "Dress for formal occasions" , "Formal robe" , "Loose flowing garment for woman or judge" , "Long formal dress" .)