In the broadest sense of the word

2. The process of increasing in size
3. That thing dads do in comics
4. That thing where you get to criticise people and pretend it is for their own good
7. The temple of American consumerism
9. Something that produces something, usually electricity
15. When two things become one without being chemically bonded
17. Stuff becoming more expensive
20. The cry of every political movement
21. Where you put things you might need later

1. A colour and fruit
5. The way something is spread
6. Coordination and administration
8. Voluntarily giving help to those in need
10. The unnamable event students go through in May, large halls and neatly aligned tables
11. Human device for hearing
12. The main concern of every sensible person in a period drama
13. Putting a positive spin on criticism
14. Opposite of hardware
16. Putting the fun in _______
18. The circumstances around something that informs our understanding
19. Warm smoothie
21. Supposedly rabbit food