Sore or painful (6)
I believe the answer is:
tender
This clue is a double definition.
'sore' is the first definition.
(synonyms)
'painful' is the second definition.
(similar in meaning)
(Other definitions for tender that I've seen before include "facility for steam train" , "Delicate sort of bid" , "One who cares" , "Bid; kindly" , "Gentle, sympathetic" .)