"H-Houston -- half of it's broken -- we have a problem" (2-2)

I believe the answer is:

uh-oh

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'we have a problem' is the definition.
I know nothing about this answer so I cannot judge whether this works.

'h-houston half of it's broken' is the wordplay.
'h-houston' becomes 'h-houston' ('houston' said with a stutter like 'houston' was).
'half of it' indicates taking half (back).
'broken' is an anagram indicator.
'hhouston' halved is 'hhou'.
'hhou' is an anagram of 'UH-OH'.

Can you help me to learn more?

I've seen this clue in The Guardian.

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