US bands fit to be broadcast - with reservations (3,3,4)

I believe the answer is:

ifs and buts

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'reservations' is the definition.
I don't know anything about this answer so I cannot tell whether it can be defined by this definition.

'us bands fit to be broadcast' is the wordplay.
'to be broadcast' indicates anagramming the letters (letters scattered or cast around).
'us'+'bands'+'fit'='usbandsfit'
'usbandsfit' with letters rearranged gives 'IFS AND BUTS'.

'with' acts as a link.

Can you help me to learn more?

(Another definition for ifs and buts that I've seen is " Uncertainties".)

I've seen this clue in The Irish Times.

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