Gestures or symbols (5)
I believe the answer is:
signs
This clue is a double definition.
'gestures' is the first definition.
(I know this)
'symbols' is the second definition.
(signs are symbols or markings)
(Other definitions for signs that I've seen before include "Signals" , "Notices; gestures" , "Autographs" , "Indications" , "Endorses" .)