### Clue: Lead-free waste and rubbish containing Iodine and pigments (3,6)
### Answer: OIL PAINTS 
 ### Explanation: Definition: pigments
 "soil"(waste, especially human excrement used as fertiliser – before modern sewage systems, there used to be night soil collectors) **minus its 1st letter**(Lead-free;without its leading character) **plus**(and)PANTS(British expression for nonsense;rubbish, as in "it wasn't music, it was pants!) **containing**(containing) I(chemical symbol for the element, iodine).