Cover rushed on ground (8)
I believe the answer is:
enshroud
'cover' is the definition.
(thesaurus)
'rushed on ground' is the wordplay.
'ground' indicates an anagram ('grind' the letters into a new form).
'rushed'+'on'='rushedon'
'rushedon' with letters rearranged gives 'ENSHROUD'.
(Other definitions for enshroud that I've seen before include "Envelop and hide from view" , "Cover with a garment (or mist?)" , "Hide - cloak" , "Completely envelop" .)