Building material in publicity given award (5)
I believe the answer is:
adobe
'building material' is the definition.
(adobe is a kind of building material)
'publicity given award' is the wordplay.
'publicity' becomes 'ad' (advert**).
'given' says to put letters next to each other.
'award' becomes 'obe' (I've seen this in other clues).
'ad'+'obe'='ADOBE'
'in' acts as a link.
(Other definitions for adobe that I've seen before include "house" , "Building material of clay and straw dried in the sun" , "Mexican mud and straw brick, and the hut made of it" , "Clay dwelling" , "Clay for mud bricks" .)