Possible Clues:

• Political fighter
• Bomb-maker, say, may make mistake on island during TT
• Traveller about to blunder � turn away, he�s a dangerous man!
• One who uses violence as a means to an end
• In the teetotaller the mistake is to behave in such a horrifying sort of way
• Commando target
• It's time to admit mistake, for violent revolutionary
• Fighter making mistake is trapped in middle of battle
• Fanatic's mistake is featured in Times
• Bomber's inaccuracy is featured in The Times initially