Alpine plant is weedless, I resolve (9)
I believe the answer is:
edelweiss
'alpine plant' is the definition.
(I've seen this before)
'weedless i resolve' is the wordplay.
'resolve' indicates an anagram (I've seen 'resolving' mean this).
'weedless'+'i'='weedlessi'
'weedlessi' is an anagram of 'EDELWEISS'.
'is' is the link.
(Other definitions for edelweiss that I've seen before include "high growth" , "flower as national symbol" , "Swedes lie about small white flower in Switzerland" , "Perennial Alpine plant -- we see lids (anag)" , "Sound of Music plant" .)