Crowds placed right in front of a Greek Island (6)
I believe the answer is:
rhodes
'greek island' is the definition.
(I've seen this before)
I cannot understand how the rest of the clue works.
Can you help me to learn more?
(Other definitions for rhodes that I've seen before include "British financier and coloniser in southern Africa, d. 1902" , "See 21 Down" , "Greek port" , "Aegean island" , "Largest island of the Dodecanese" .)