Sector abroad providing bodyguard (6)
I believe the answer is:
escort
'bodyguard' is the definition.
(synonyms)
'sector abroad' is the wordplay.
'abroad' indicates an anagram.
'sector' is an anagram of 'ESCORT'.
'providing' is the link.
(Other definitions for escort that I've seen before include "wheels?" , "'Accompany, perhaps protectively (6)'" , "Custodian" , "attendance" , "Accompany, to protect perhaps" .)