The Crossword Centre Clue-Writing Competition

CCCWC April competition voters’ comments
 
Clue no. 14: Cast iron scrap bearing no value loaded with odd bits of iron and lead in Titanic?

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A clue to LEONARDO DICAPRIO.
3 comments refer to this clue (from 2 competitors, 1 other)

Here is the text

Comments on the clue
1.I like the deception of 'lead' and the coherent theme, but S,C,P are all values in SCRAP, so S deletion isn't clear.
2.'Bearing no value' doesn't work for me.
3.Perhaps 'for' would be a better link word than 'and' and why does 'value' = 'S'.