Triumph before trouble around five (7)
I believe the answer is:
prevail
'triumph' is the definition.
(I know that triumph can be written as prevail)
'before trouble around five' is the wordplay.
'before' becomes 'pre' (prefix meaning 'before').
'trouble' becomes 'ail' (synonyms).
'around' indicates putting letters inside.
'five' becomes 'V' (Roman numeral).
'pre'+'ail'='preail'
'preail' going around 'v' is 'PREVAIL'.
(Other definitions for prevail that I've seen before include "Be widespread; prove superior" , "Triumph, overcome" , "Be current" , "get the upper hand" , "Carry the day" .)