Cryptic crossword No 424

Across

1. Popular deputy heading for home defence strategy (2-5)
2. Pathetic individual takes advantage of brief opportunity (7)
3. Sports lover touches queen for a bet (5)
4. Self-absorbed male cop is a bit questionable (9)
5. Irish sunk a dodgy Chancellor (5,5)
6. Rescue Nancy's hat from snakepit (4)
7. Governmental elitism in a right mess (11)
8. Not apologising for interfering with nine pet mice (11)
9. Mock English rules (4)
10. I am singled out for pulling a fast one (10)
11. Wrapping Viagra in butter - it's disgusting and won't improve relations (9)
12. Element of flat insurance that's likely to give rise to passion and excitement (5)
13. Two men on a toilet may be influencing government policy (7,6)
14. Gets money unlawfully and dances (7)

Down

1. Internal head of immigration oversees an exit from Rwandan disaster (6)
2. Investigator gets spurious summary (6)
3. A group of birds and where they lie (10)
4. Old Indian is a little behind us (5)
5. Unforgivable act? In a way, it's normal (6,3)
6. Deposited city papers (4)
7. The man in America in charge of the whole body (8)
8. Fundamentally oppose Russian ennoblement? It can be done (8)
9. Greens in Thatcher's cabinet? Old TV cabinet that is... (10)
10. I turn into awfully grubby stuff? (9)
11. More straighforward after boarding Paris train (8)
12. Government adviser rubs out American blooming projections (8)
13. Politician hides first piece (6)
14. See 27a
15. Measure below outer lacunary gland (5)
16. Johnson perhaps scratches back of Eastern rulers (4)