Significant article in Bild to follow about the other material? (9)
I believe the answer is:
remainder
'other material?' is the definition.
'remainder' can be an answer for 'material?' (remainder is a kind of material). I'm not certain of the 'other' bit.
'significant article in bild to follow about' is the wordplay.
'significant' becomes 'main' (I can't explain this - if you can you should give a lot more credence to this answer).
'article in bild' becomes 'der' (definite article used in German newspaper Bild).
'to follow' is a charade indicator (letters next to each other) (some letters go after or follow others).
'about' becomes 're' (regarding).
'main'+'der'='mainder'
'mainder' put after 're' is 'REMAINDER'.
'the' acts as a link.
Can you help me to learn more?
(Other definitions for remainder that I've seen before include "Residue" , "Sell off book stock cheaply" , "It's left over after division" , "Unsold copy of book" , "part that is still to come" .)