Related Clues:

• Interstellar region
• Learner not great when turning — certainly establishing safety margin
• Unfilled region
• Room to manoeuvre allows twisting fish to turn over
• Room to manoeuvre in river channel
• Engage in (games)
• Freedom to move
• Opposite of work
• Free hand with river technique
• Take the field
• First word in the ''Star Trek'' intro
• Word with age or Race
• Pundit initially put down performance
• Rub leg against someone else's with amorous intentions
• Room to manoeuvre by river path