Pull out of additional court case (7)
I believe the answer is:
extract
'pull out' is the definition.
('extract' can be a synonym of 'pull out')
'additional court case' is the wordplay.
'additional' becomes 'extra' (I've seen this before).
'case' says to hollow out the word (remove centre letters).
'court' with its centre taken out is 'ct'.
'extra'+'ct'='EXTRACT'
'of' acts as a link.
(Other definitions for extract that I've seen before include "Pluck out" , "(Piece) remove(d)" , "Citation" , "Passage taken from book etc" , "essence" .)