Sets up line for listeners primarily in middle-eastern country (6)
I believe the answer is:
Here is my best explanation:
'middle-eastern country' is the definition.
(I've seen this before)
'sets up line for listeners primarily in' is the wordplay.
'sets up' is a reversal indicator.
'line' becomes 'l'.
'for' means one lot of letters go next to another.
'listeners' becomes 'ears'.
'primarily' indicates taking the first letters.
The first letter of 'in' is 'i'.
'learsi' backwards is 'israel'.
(Other definitions for israel that I've seen before include "Strange serial country", "Serial about middle east country", "Country in the Middle East", "Eastern Med nation", "Middle East country in serial", "Middle Eastern state", "Hands perhaps", "Jewish republic", "Mediterranean republic" and "Republic".)