Oh no, trustees being sued regularly given judgment (5,5)
I believe the answer is:
horse sense
'judgment' is the definition.
(horse sense is a kind of judgment)
'oh no trustees being sued regularly' is the wordplay.
'regularly' indicates alternate letters (regularly take one letter, leave next etc.).
'oh'+'no'+'trustees'+'being'+'sued'='ohnotrusteesbeingsued'
The alternate letters of 'ohnotrusteesbeingsued' are 'HORSE-SENSE'.
'given' acts as a link.
(Other definitions for horse sense that I've seen before include "Practical judgment" , "Practical wisdom" , "Nous" , "Sound practical judgement" , "good thinking" .)