Some warn about embracing international philanderer (9)
I believe the answer is:
womaniser
'philanderer' is the definition.
(synonyms)
'some warn about embracing international' is the wordplay.
'about' indicates an anagram.
'embracing' indicates putting letters inside.
'international' becomes 'i' (abbreviation eg in IMF).
'some'+'warn'='somewarn'
'somewarn' anagrammed gives 'womanser'.
'womanser' enclosing 'i' is 'WOMANISER'.
(Other definitions for womaniser that I've seen before include "Wolf" , "Man amorously pursuing females" , "Ladies' man" , "Philanderer" , "Playboy" .)