It's rash to let swine free at the central court! (6)
I believe the answer is:
unwise
'it's rash' is the definition.
(I've seen this before)
'swine free at the central court' is the wordplay.
'free' indicates an anagram.
'at' says to put letters next to each other (I've seen this in other clues).
'the central' says to take the centre.
The centre of 'court' is 'u'.
'swine' anagrammed gives 'nwise'.
'nwise' after 'u' is 'UNWISE'.
'to let' acts as a link.
This may not be correct. Some or all of it may be part of another bit of the clue.
Can you help me to learn more?
(Other definitions for unwise that I've seen before include "Not sensible, foolish" , "Rash" , "isn't sensible" , "Injudicious" , "Ill-judged" .)