Bladderwrack, e.g. (7)
I believe the answer is:
seaweed
(Other definitions for seaweed that I've seen before include "Wrack" , "We eased (anag)" , "What's seen at the coast" , "Laver perhaps" , "Iodine source" .)
I believe the answer is:
seaweed
(Other definitions for seaweed that I've seen before include "Wrack" , "We eased (anag)" , "What's seen at the coast" , "Laver perhaps" , "Iodine source" .)