Check out Sam from the plant (6)
I believe the answer is:
sesame
'the plant' is the definition.
(sesame is a kind of plant)
'check out sam' is the wordplay.
'check' becomes 'see' (synonyms).
'out' is an insertion indicator.
'see' going around 'sam' is 'SESAME'.
'from' is the link.
(Other definitions for sesame that I've seen before include "Crop valued for its seeds and oil" , "Password of the Arabian Nights" , "Seeds used for making oil" , "Plant yielding seeds used for flavouring bread" , "Opening word for a magician" .)