Possible Clues:

• Having the same tension, one thus needs bracer
• Type of drink restoring body fluids and salts
• One thus needs medicine such as an energy drink?
• (Of a drink) having the same concentrations of salts and minerals as in the body
• Replacing fluids and salts is boost where egg's eaten
• Like athlete's drink -- is 'medicine' with nothing in it
• One drunk gets coin out for type of drink sold at the leisure centre
• Kind of drink one drinker chilled briefly
• ____ drinks are used to replace minerals and salt lost by sweating
• Replacing fluids and salt is boost with nothing eaten