She's put in the wrong seat again (6)
I believe the answer is:
teresa
'she's' is the definition.
'in the wrong seat again' is the wordplay.
'in' indicates putting letters inside.
'the wrong' indicates an anagram.
'again' becomes 're'.
'seat' anagrammed gives 'tesa'.
'tesa' enclosing 're' is 'TERESA'.
'put' is the link.
(Other definitions for teresa that I've seen before include "Saint" , "Mother of Calcutta, 1910-97" , "Mother...saintly nun of Calcutta" , "Woman" , "Nun who was dedicated to helping the poor of Calcutta" .)