Weed possibly represented danger (6)
I believe the answer is:
garden
'weed' is the definition.
(weeding is a type of gardening)
'represented danger' is the wordplay.
'represented' is an anagram indicator.
'danger' is an anagram of 'GARDEN'.
'possibly' acts as a link.
(Other definitions for garden that I've seen before include "Cultivate a plot" , "Green space attached to a house" , "-- City; -- centre" , "Land round house" , "Danger (anag.)" .)