Covers overhead (5)
I believe the answer is:
tiles
This clue is a double definition.
'covers' is the first definition.
(tiling is a kind of covering)
'overhead' is the second definition.
(thesaurus)
(Other definitions for tiles that I've seen before include "Small oblong slabs used in roofing" , "Roofing materials" , "Glazed rectangles used to cover walls or floors" , "Thin flat slabs of fired clay" , "Thin flat slabs, for roofing perhaps" .)