i leave the law to the big guns (8) -R---N--
indigestible food for example - sent back (6) -T----
As set by one out to break a record? (8,4)
---C-I-- -A-E
A whole chapter may be devoted to him (4) ----
The answer could be DEAN. A group of clergy in the Anglican Church are known as a chapter and they would be devoted to a DEAN, a senior clergyman. Unless anyone else has a better idea.