State the top guy in Asia (8)
I believe the answer is:
tasmania
'state' is the definition.
(Tasmania is an example)
'the top guy in asia' is the wordplay.
'top' says to take the initial letters.
'guy' becomes 'man ' (I've seen this before).
'in' is an insertion indicator.
The first letter of 'the' is 't'.
'man' going within 'asia' is 'asmania'.
't'+'asmania'='TASMANIA'
(Other definitions for tasmania that I've seen before include "Pacific isle" , "Van Diemen's Land" , "Antipodean island state" , "Aussie island state" , "Commonwealth state" .)