Very aggressive type of delivery yob lined up (4-4)

I believe the answer is:

body-line

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'very aggressive type of delivery' is the definition.
I can't tell whether this definition defines the answer.

'yob lined up' is the wordplay.
'up' is an anagram indicator (letters get chucked up).
'yob'+'lined'='yoblined'
'yoblined' is an anagram of 'BODY-LINE'.

Can you help me to learn more?

(Another definition for body-line that I've seen is " Short-pitched fast bowling as in 1932/33 controversy".)

I've seen this clue in The Times and The Sunday Times.

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