13/15a. End of the road? No going further than this(4,4)???t s???
Bite off more than you can chew? At a stretch, you might do!(10)??e?e?t?n?
14d.Whats another year to an ancient Roman (5) ??n??
21a. Some might draw a spike from one.(4) w???
27d Sounds skilful, perhaps,
but it's so pretentious (4)a?t?
Many thanks