Get chopper with Charlie, also heading on trip hosted by state (3,1,5)

I believe the answer is:

cut a tooth

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'heading on trip hosted by state' is the definition.
I don't know anything about this answer so I cannot judge whether this works.

'get chopper with charlie' is the wordplay.
'get' becomes 'uta' (I can't explain this - if you can you should give a lot more credence to this answer).
'chopper' becomes 'tooth' (I've seen this before).
'with' means one lot of letters go next to another.
'charlie' becomes 'C' (phonetic alphabet).
'uta'+'tooth'='utatooth'
'utatooth' put after 'c' is 'CUT A TOOTH'.

'also' is the link.

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I've seen this clue in The Guardian.

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