This is an anagram combined with a deletion. An anagram rearranges letters of given words, while a deletion removes specific letters before or after the rearrangement.
'Broken' is the anagram indicator. You need to take the word 'REUNITED', remove the letters 'IT' from it (as indicated by 'without it'), then rearrange the remaining letters.
Answer: ENDURE | Take 'REUNITED', remove 'IT' to get 'REUNED', then 'broken' indicates an anagram of these letters to spell ENDURE (meaning to stick it out or persist).