Related Clues:

• Choir accessory
• One getting up
• The sound of footsteps
• Revolting individual given a step up
• Walk, having time to understand
• Early bird in flight?
• This part of stair is erect
• Put one's foot down, when it's time to study
• A rebel one got out of bed
• One is vertical in flight
• One was recently asleep through part of flight
• Act in walk-on parts?
• 'Get up, Knight! The Queen!' - and he does
• King: then should Queen be a bit of a step up?
• It gives height in flight