Crossword Genius

Could this render one, in full cry, out of bounds? (3,3)

Ross

I believe the answer is:

roo bar

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'could this render one in full' is the definition.
I know nothing about this answer so I can't judge whether it can be defined by this definition.

'cry out of bounds?' is the wordplay.
'cry' becomes 'roar' (roar is a kind of cry).
'out' is an insertion indicator.
'of bounds?' becomes 'ob' (this could be a standard abbreviation I've not previously seen).
'roar' going around 'ob' is 'ROO BAR'.

Can you help me to learn more?

(Other definitions for roo bar that I've seen before include "Item on front of Australian vehicle" , "Car defence against animal impact (Aus.)" .)

I've seen this clue in The Telegraph.
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