Cryptic crossword No 3,537

Across

1. A question of one's own capability to check cold and warm? (8)
2. They help to relocate text about balls (6)
3. Shelter mayor essentially in a rough part of town (6)
4. Take care of group mentality (7)
5. Distribution of Big Issue an accepted early sign of unproductive nation (6-6)
6. Fly through time in empty aeroplane (6)
7. Fudgeller with new promise to suits? (8)
8. Offered nurse European wine (8)
9. Organised train trips, frequently handy (5,7)
10. Canine therapist exposed at work (4,3)
11. While avoiding clubs, give drugs to referee (7)
12. Waste ages in underground cells (8)
13. Pieces of eights? (7)
14. Prime focus with new patient provided (2,4)

Down

1. Have an inkling that American president is in cult (7)
2. English earl's drug perhaps heard to relax (4)
3. Team leader assuming one on bench getting rest (4)
4. Playing game, enemies tire after spending all energy to get aliens (10)
5. Most authentic entrance not original to property (4,6)
6. Speed of dance steps in performance captivating heart of country (10)
7. What connects Poles? Interminable dreaming about independence being accepted (8)
8. Shakespeare's first love with very undesirable person (2-3-2)
9. Famous Edindurgh houses mistreated (4)
10. Range of sympathy when dismissing one at work (7)
11. Tories suppressing speech dismissing conservative requirements (10)
12. Churchman is in brand new TV show (8)
13. Model student stops games after investigation (7)
14. Opportunity to introduce Middle Eastern leaders (4)
15. Mersenne's first machine learning new prime (4)
16. Book price brought about argument (4)