Arab sycophants shunning second one (6)
I believe the answer is:
yemeni
'arab' is the definition.
(Yemeni is an example)
'sycophants shunning second one' is the wordplay.
'sycophants' becomes 'yesmen' (I've seen this before).
'shunning' suggests deleting specific letters.
'second' becomes 's' (common abbreviation).
'one' becomes 'i' (Roman numeral).
'yesmen' with 's' taken out is 'yemen'.
'yemen'+'i'='YEMENI'
(Other definitions for yemeni that I've seen before include "from the Middle East" , "Arab national" , "From a country in the Arabian peninsula, capital Sana'a" , "from an Arab country" , "Native of, eg, Aden" .)