Dress overall a tuneful ship (8)
I believe the answer is:
pinafore
This clue could be a double definition.
'dress overall' is the first definition.
'pinafore' can be an answer for 'dress' (I've seen this before). I am not sure about the 'overall' bit.
'a tuneful ship' is the second definition.
'pinafore' can be an answer for 'ship' (I've seen this before). I'm unsure of the 'a tuneful' bit.
Can you help me to learn more?
(Other definitions for pinafore that I've seen before include "Protective kitchen wear" , "gives homely protection" , "'HMS - - ' G & S" , "G&S ship" , "Protective garment worn over front" .)