Country crowd at last sail from shore to island (8)
I believe the answer is:
djibouti
'country' is the definition.
(I know that Djibouti is a country)
'crowd at last sail from shore to island' is the wordplay.
'at last' suggests the final letters.
'sail' becomes 'jib' (jibbing is a kind of sailing).
'from shore' becomes 'out' (as in the tide going out).
'to island' becomes 'i' (geographical abbreviation).
The last letter of 'crowd' is 'd'.
'd'+'jib'+'out'+'i'='DJIBOUTI'
(Other definitions for djibouti that I've seen before include "part of Africa" , "foreign port" , "Republic between Eritrea and Somalia" , "Country in the Horn of Africa" , "African country" .)