German sherry centre (4)
I believe the answer is:
herr
'german' is the definition.
(German equivalent to Mr)
'sherry centre' is the wordplay.
'centre' indicates the answer is hidden within the clue (hidden in the middle of the letters).
'HERR' is hidden within 'sherry'.
(Other definitions for herr that I've seen before include "A German gentleman" , "German form like Mr." , "German man's title" , "Dieter respectfully addressed" , "Mister in German" .)