Possible Clues:

• A year in team, so far
• Phrase often preceding 'undiscovered'
• How the olde Tiger's Head may be written — till now
• To this juncture
• Until today
• It may precede ''undiscovered''
• Inordinately easy start to Toughie? Till now!
• Up to this point (2 words)
• Up to today
• American determined to retain ultimate in anonymity, until now