Continue to haul box full of goods (6)
I believe the answer is:
carton
'box full of goods' is the definition.
'carton' can be an answer for 'box' (I've seen this in another clue). I'm not sure about the 'full of goods' bit.
'continue to haul' is the wordplay.
'continue' becomes 'on' (I've seen this in other clues).
'to' is a charade indicator (letters next to each other) (I've seen this in other clues).
'haul' becomes 'cart' (synonyms).
'on' put after 'cart' is 'CARTON'.
Can you help me to learn more?
(Other definitions for carton that I've seen before include "Small, light box or container" , "Box without great strength" , "Flapped cardboard box" , "fictional lawyer" , "Cardboard or plastic container" .)