Worried; involved (9)
I believe the answer is:
concerned
This clue is a double definition.
'worried' is the first definition.
('concern' can be a synonym of 'worry')
'involved' is the second definition.
(similar in meaning)
(Other definitions for concerned that I've seen before include "anxiety" , "Involved - worried" , "Worried, anxious" , "Feeling or showing worry or solicitude" .)