Noisy high speed's the usual way to show virility (8)
I believe the answer is:
machismo
'virility' is the definition.
(I've seen this before)
I cannot understand how the rest of the clue works.
Can you help me to learn more?
(Other definitions for machismo that I've seen before include "Hi, commas, strangely, might have exaggerated masculinity" , "Strong masculine pride" , "A show of virility or manliness" , "Expression of male pride" , "Exaggerated virility" .)