Voice coach in high-flying company (6)
I believe the answer is:
airbus
'high-flying company' is the definition.
The definition suggests a singular noun which matches the answer.
'voice coach' is the wordplay.
'voice' becomes 'air' (both can mean to express something).
'coach' becomes 'bus' (synonyms).
'air'+'bus'='AIRBUS'
'in' acts as a link.
Can you help me to learn more?
(Other definitions for airbus that I've seen before include "Commercial passenger plane" , "European manufacturer of the A380, the world's largest passenger jet" , "plane - with 27d" .)