Observed — commented (8)
I believe the answer is:
remarked
I believe this clue is a double definition.
'observed' is the first definition.
('remark' can be a synonym of 'observe')
'commented' is the second definition.
(I've seen this in another clue)
(Other definitions for remarked that I've seen before include "Made written or spoken comment" , "Made comment or observation" , "Observed, mentioned" , "Comment made about deer mark" , "Said" .)