Put too much paint on protective clothing? (8)
I believe the answer is:
overcoat
I believe this is a double definition.
'put too much paint on' is the first definition.
(to overcoat could mean to coat too much paint on)
'protective clothing?' is the second definition.
(coat protecting one's clothes)
(Other definitions for overcoat that I've seen before include "warmer" , "Outdoor garment" , "Heavy outer garment" , "Ulster, perhaps" , "Outerwear" .)