1D - Abbot and saint - lop both into pieces for traveller's friend (7) I have B?T?L??
13A - Potter's companion in Williams leitmotiv (6) I have ????I?
21A - Longfellow's burial ground (4-4) I have G???A?R?
14D - alloted sides long locked in floral rivalry (8) I have ??K?????