Crossword Genius

What can stop British playboy duke entering insane plea? (5,5)

Ross

I believe the answer is:

brake pedal

I'm a little stuck... Click here to teach me more about this clue!

'what can stop' is the definition.
I can't judge whether this definition defines the answer.

'british playboy duke entering insane plea?' is the wordplay.
'british' becomes 'b' (abbreviation e.g. in 'BBC').
'playboy' becomes 'rake' (old-fashioned term for a womanising man).
'duke' becomes 'd' (abbreviation).
'entering' is an insertion indicator.
'insane plea?' becomes 'peal' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'd' going within 'peal' is 'pedal'.
'b'+'rake'+'pedal'='BRAKE PEDAL'

Can you help me to learn more?

Want a hint initially instead of a full solution? Install my app