mega 45 and colossus 299

mega
92 set in one's ways H??e?o??s
97 revive (debate) l?i?n??e
mix
sharp blow that keeps you in your seat ?e?t
stinker
85 sinful selling of relics s?m?i?
116 food emulsifier l?c?th?n
65 military offensive p?s?

cryptic
1 mean to involve beginner in misery m?s?r??
70 thin dispatcher grabbed letterhead s?e????
baffler
The ?e?ers Progress
Nation's annual output G??
stinker
226d amble t????e
239a droplet ??I?
244a plate shaped did?o??
280a UK shares index f?o?sie (Footsie?)
thanks