Heads for home over disgusting thing seen on building site (3)
I believe the answer is:
hod
'thing seen on building site' is the definition.
I can't tell whether this defines the answer.
'heads for home over disgusting' is the wordplay.
'heads for' says to take the initial letters.
The initial letters of 'home over disgusting' is 'HOD'.
Can you help me to learn more?
(Other definitions for hod that I've seen before include "Brick-layer's tool" , "Trough on pole used by bricklayer to carry things" , "Trough on pole for carrying bricks" , "Coal-scuttle" , "Brick carrier of shoddy type" .)