Broadcast about foreign cash settled matter (8)
I believe the answer is:
sediment
'settled matter' is the definition.
(I've seen this in another clue)
'broadcast about foreign cash' is the wordplay.
'broadcast' becomes 'sent' (sent or transmitted as a broadcast).
'about' means one lot of letters goes inside another.
'foreign cash' becomes 'dime' (I am not sure about the 'foreign' bit.).
'sent' going around 'dime' is 'SEDIMENT'.
Can you help me to learn more?
(Other definitions for sediment that I've seen before include "Stuff that settles to the bottom" , "End times (anag)" , "Particles that settle on the bottom of river or wine" , "Dregs; deposit" , "Residue" .)