A pair of females streak, creating disturbance (6)
I believe the answer is:
affray
'disturbance' is the definition.
(synonyms)
'a pair of females streak' is the wordplay.
'pair of females' becomes 'FF' (the abbreviation for female repeated).
'streak' becomes 'ray' (as in a streak of light).
'a'+'ff'+'ray'='AFFRAY'
'creating' is the link.
(Other definitions for affray that I've seen before include "A fight or riot in public" , "Breach of the peace by public rioting" , "Disturbance in public place" , "Brawling" , "Brawl, disturbance" .)