The term 'EXPERIENCED, TOUGH' can be summarized by the crossword solution 'HARDENED', which is an 8-letter word. This term implies that someone has gone through a lot of difficult experiences and has become resilient and strong as a result. It suggests that this person has developed a tough exterior and is not easily affected by external factors. This term is often used to describe people who have been through a lot of hardship and have come out stronger on the other side.