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' indicates anagramming the letters.
'danger' with letters rearranged gives 'GARDEN'.
'possibly' is the 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.)" .)