15 down Popular bowler perhaps with one out for a duck. H?T I can see that POPULAR could be HOT Bowler could be HAT but I can't relate either word to the rest of the clue
If 33 down is REPERTOIRE (Collection of works that an artist or company can perform) that means that 49 across is I?I?E (Any of a class of organic compounds derived from ammonia) I've googled the...