Possible Clues:

• Climb awkwardly — move quickly
• Cook (eggs); clamber
• HINT: To get the circled words of 23 Across and 25 Across, ___ the word 'time'
• Motorcycle rally
• Hurry from senior staff room, then walk slowly
• Car's unusual emblem losing ends in motorsport event
• Clambers (anag.)
• Rush to prepare breakfast items sometimes
• Clamber�s put another way
• Rough motorcycle race