Historic speed challenge's second to produce male pride (8)
I believe the answer is:
machismo
'pride' is the definition.
(I have seen 'Masculine pride ' mean 'machismo' so perhaps 'pride' could also mean 'machismo')
'historic speed challenge's second to produce male' is the wordplay.
I cannot really understand how this works, but
'speed' could be 'mach' (I have seen 'Speed of sound ' mean 'mach' so perhaps 'speed' could also mean 'mach') and 'mach' is located in the answer.
'second' could be 'mo' (both are short periods of time) and 'mo' is present in the answer.
The remaining letters 'is' is a valid word which might be clued in a way I don't understand.
This explanation may well be incorrect...
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" , "aggressive masculinity" , "Masculine swagger" , "form of pride" .)