8d. Force in expressing one's opinions, stridency. (14). I think the answer must be boisterousness but the 12a answer is Polanski, thus making the 4th letter of 8d an i. -o-i-e-o-s-e-s. It is probably...
6d. Latin phrase formerly used to describe an irish public house licensed to remain open after hours to serve genuine travellers (4, 4 ) - o - a, - i - e