### Clue: Close up Oscar sees audience's dirty (7)
### Answer: OCCLUDE 
 ### Explanation: Definition: Close up
 O(letter represented by "Oscar" in the phonetic alphabet) + { **twice the ****homophone of**(… audience's) "see", OR, if you like, **twice the acronym for** "see" in text messaging, as in "c u" } + **homophone of**(audience's) "lewd"(dirty/obscene).
Defn: …/to block an opening or orifice.