Observation, comment (6)
I believe the answer is:
remark
This clue is a double definition.
'observation' is the first definition.
(I know that remark is a type of observation)
'comment' is the second definition.
(a remark is a spoken comment)
(Other definitions for remark that I've seen before include "Something said; take notice of" , "Comment or mention" , "Notice or comment on" , "what someone says?" , "Incidental observation" .)