Copper after car with English speaker's prompter (7)
I believe the answer is:
autocue
'speaker's prompter' is the definition.
'autocue' can be an answer for 'prompter' (synonyms). I am not sure about the 'speaker's' bit.
'copper after car with english' is the wordplay.
'copper' becomes 'cu' (chemical symbol).
'after' is a charade indicator (letters next to each other).
'car' becomes 'auto' (synonyms).
'with' is a charade indicator (letters next to each other).
'english' becomes 'e' (abbreviation).
'cu' put after 'auto' is 'autocu'.
'autocu'+'e'='AUTOCUE'
Can you help me to learn more?
(Other definitions for autocue that I've seen before include "TV prompt device" , "Prompting device for a speaker" , "TV signal" , "Newsreader's aid" , "TV text reader" .)