Twisting a wire, it's for climber (8)
I believe the answer is:
wisteria
'climber' is the definition.
(the wisteria is a climbing plant)
'twisting a wire it's' is the wordplay.
'twisting' indicates anagramming the letters.
'a'+'wire'+'its'='awireits'
'awireits' is an anagram of 'WISTERIA'.
'for' acts as a link.
(Other definitions for wisteria that I've seen before include "I saw tire in this vine with the long flower clusters" , "Large climbing shrub, often attached to house" , "As I write badly about the flowering vine" , "Climbing lilac-flowered shrub" , "A flower, I swear it" .)