"___ are like onions ... onions have layers, ___ have layers" ("Shrek" line) Crossword Clue

(noun)

1. the principal activity in your life that you do to earn money
2. acting in conformity
3. a conductor for transmitting electrical or optical signals or electric power
4. something (as a cord or rope) that is long and thin and flexible
5. the road consisting of railroad track and roadbed
6. a commercial organization serving as a common carrier
7. a particular kind of product or merchandise
8. a pipe used to transport liquids or gases
9. mechanical system in a factory whereby an article is conveyed through sites at which successive operations are performed on it
10. a telephone connection
11. a conceptual separation or distinction
12. a course of reasoning aimed at demonstrating a truth or falsehood; the methodical process of logical reasoning
13. (often plural) a means of communication or access
14. a short personal letter
15. a mark that is long relative to its width
16. text consisting of a row of words written across a page or computer screen
17. persuasive but insincere talk that is usually intended to deceive or impress
18. a succession of notes forming a distinctive sequence
19. the descendants of one individual
20. a connected series of events or actions or developments
21. a formation of people or things one behind another
22. a formation of people or things one beside another
23. a spatial location defined by a real or imaginary unidimensional extent
24. in games or sports; a mark indicating positions or bounds of the playing area
25. a fortified position (especially one marking the most forward position of troops)
26. a single frequency (or very narrow band) of radiation in a spectrum
27. the maximum credit that a customer is allowed
28. space for one line of print (one column wide and 1/14 inch deep) used to measure advertising
29. a length (straight or curved) without breadth or thickness; the trace of a moving point
30. a slight depression or fold in the smoothness of a surface

(verb)

1. reinforce with fabric
2. fill plentifully
3. cover the interior of
4. mark with lines
5. make a mark or lines on a surface
6. be in line with; form a line along