Possible Clues:

• Leafless organ on a climbing plant
• Part of a twining plant — red lint (anag)
• Part of the climbing plant around accommodation housing indris at The Centre
• Grapevine's gripper
• Strand incorporates some forgotten drillholes
• Number exercise, we hear, in part of plant
• Five braces exercise stunted climber's grip
• Plant’s curling shoot
• What a climbing plant uses to hang on
• Nurse hands round peeled fig or bit of grape plant, say