The most common and most likely answer to this crossword clue is the 6 letter word SATURN
I've seen this crossword clue in Financial Times
S
A
T
U
R
N
More clues leading to the result SATURN
- God put wind beneath it
- Go after sex appeal in heavenly body
- God as revealed in performance by Salvationists
- God posed beside vase
- Second go required to orbit a planet
- Planet finally completes a revolution
- Probes go round it and go under it
- Body noted for rings gives a second backing performance
- When to be rejected by wind god
- World – go after it!
Buddy explains!

The straight part
We know that "World" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case world = saturn.The cryptic/wordplay part
In cryptic crossword there's often an wordplay/cryptic part as well.This part involves a more complex hint, such as an anagram, homophone, hidden word, etc.
Sadly, We don't have an explanation for this specific crossword clue yet.