Bladder’s thus situated in calf (7)

I believe the answer is:

vesical

'bladder's thus situated in calf' is the definition.
I can't tell whether this definition defines the answer.

'thus situated in calf' is the wordplay.
'thus' becomes 'sic' ('thus' in Latin).
'situated in' means one lot of letters goes inside another.
'calf' becomes 'veal' (veal is calf meat).
'sic' inserted inside 'veal' is 'VESICAL'.

(Another definition for vesical that I've seen is " Relating to the bladder".)

I've seen this clue in The Times.

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