Stick notice in this place (6)
I believe the answer is:
adhere
'stick' is the definition.
(synonyms)
'notice in this place' is the wordplay.
'notice' becomes 'ad' (short for advert).
'in this place' becomes 'here' (synonyms).
'ad'+'here'='ADHERE'
(Other definitions for adhere that I've seen before include "Stick to, cling" , "Cling, attach" , "Stick to or remain faithful" , "Stick or cleave to" , "Stick to - cement" .)