Fearfully apologetic? (6)
I believe the answer is:
afraid
'apologetic?' is the definition.
(thesaurus)
I don't understand the remainder of the clue.
Can you help me to learn more?
(Other definitions for afraid that I've seen before include "Regretfully" , "Alarmed, fearful" , "Filled with fear" , "Filled with concern" , "makes one panicky" .)