Oscar then interrupts wild driving manoeuvres (5-5,5)
I believe the answer is:
three-point turns
'driving manoeuvres' is the definition.
'three point turns' can be an answer for 'manoeuvres' (I have seen 'certain manoeuvres' mean 'three point turns' so perhaps 'manoeuvres' could also mean 'three point turns'). I am not certain of the 'driving' bit.
'oscar then interrupts wild' is the wordplay.
'oscar' becomes 'O' (phonetic alphabet: alpha, bravo, charlie etc.).
'wild' is an anagram indicator.
'o'+'then'+'interrupts'='otheninterrupts'
'otheninterrupts' anagrammed gives 'THREE-POINT TURNS'.
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