Soldiers in crude picture first to occupy island (6,4)
I believe the answer is:
puerto rico
'island' is the definition.
(Puerto Rico is an example)
'soldiers in crude picture first to occupy' is the wordplay.
'soldiers' becomes 'OR' (Other Ranks).
'in' is an insertion indicator.
'crude' indicates anagramming the letters.
'first to' indicates taking the first letters.
The initial letter of 'occupy' is 'o'.
'picture'+'o'='pictureo'
'pictureo' is an anagram of 'puertico'.
'or' placed within 'puertico' is 'PUERTO RICO'.
(Other definitions for puerto rico that I've seen before include "Well-filled country" , "WI island associated with the US" , "Caribbean island" , "Caribbean location" , "Self-governing American commonwealth in the Caribbean" .)