Grapevine's gripper (7)

I believe the answer is:

tendril

(Other definitions for tendril that I've seen before include "Stem by which climbing plant attaches itself" , "Climbing plant's means of support" , "Plant's curling support" , "Gripping part of climbing plant" , "Thread-like part by which climbing plant clings" .)

I've seen this clue in the Newsday.

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