@dmac,
Just off the top of my head I'd say
107a ABSTAIN
145a EVENS.
Try to remember to always as much information as you have regarding the number of letters in each answer and any letters you already have in your answer so far from intersecting clues.In this way for example 107a might have been ?BST?I?.
And give more space to each clue such as one per line.
Good Luck