Tells (7)
(Other definitions for relates that I've seen before include "Narrates" , "Describes" , "Tells (a tale)" , "couples" .)
'tells' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for informs that I've seen before include "Shops" , "peachs" , "Notifies" , "Tells" , "Imparts knowledge" .)