Perfunctory; symbol (5)
I believe the answer is:
token
I believe this is a double definition.
'perfunctory' is the first definition.
(I've seen this before)
'symbol' is the second definition.
(I know that token is a type of symbol)
(Other definitions for token that I've seen before include "Symbol; metal disc" , "Something of sentimental value" , "Gift voucher - symbol" , "empty gesture?" , "Voucher (for, eg, books)" .)