Appropriate Terms -- Cryptic Clues

Question

Step 1 -- Appropriate Terms

Solve the following cryptic clues:

1. Reportedly talked about revolt (7)
   
2. Studied super varied education (7)
   
3. Beginners without faults (7)
   
4. OB keeps bizarre custom (7)
   
5. Scarf is sure concealing cleavage (7)
   
6. Croon at ranch to odd associate (7)
   
7. Was left around south (7)
   
8. Laid back dealer has ecstasy! (7)

Step 2 -- Short Term Solutions

Use step one's answers to fill in this simple crossword. One of these answers is not like the others! Find out which one, and use it to your advantage.

Step 3 -- The Late Term

Take the 4 marked letters from the puzzle to get the final, somewhat inappropriate, answer.

(Edit: This was a late addition to the fortnightly challenge)

Answer 1

Step 1

1. DISGUST (def: 'revolt', sounds like 'discussed')
2. PERUSED (def: 'studied', anagram of 'super' + 'ed')
3. NOVICES (def: 'beginners', no vices)
4. BESPOKE (def: 'custom', anagram of 'OB keeps')
5. FISSURE (def: 'cleavage', 'scarF IS SURE')
6. CONTACT (def: 'associate', odd letters of 'CrOoN aT rAnCh To')
7. EXISTED (def: 'was', 'exited' around 's')
8. RELAXED (def: 'laid', 'dealer' backwards has 'x')

Step 2

All of the words end with a 4-letter word, except EXISTED. Use that as the horizontal word, and fill in the four letter words, using the given 'S' as help:

S    PU
U  G OS
RA U KE 
EXISTED
 ECTA
 DE C
  S T

Step 3:

The selected letters give: XKCD.