8 "have kittens" could be "excited", though "nervous" is commoner
2 anagram GIRL (s)EEN (pole abandoned)
7 TRY - hear is in a court, around EAT - upset?
4 FLEX - contract as a verb, as a muscle would, TIME is the enemy!
28 WAY - custom, LAY - of the people (as opposed to clergy, for instance)
11 PI is a bit over 3 - 3.14...., C - hundred in Roman numerals, TO in the clue