A male around Sydney's outskirts confonted little Richard, unbalanced (10)
I believe the answer is:
asymmetric
'unbalanced' is the definition.
(I've seen this before)
'a male around sydney's outskirts confonted little richard' is the wordplay.
'a male' becomes 'am' (I've seen this in other clues).
'around' indicates putting letters inside.
'outskirts' means to remove the middle letters (I've seen 'outskirts of' mean this).
'confonted' becomes 'met'.
'little richard' becomes 'ric'.
'sydney' with its centre taken out is 'sy'.
'am' going around 'sy' is 'asym'.
'asym'+'met'+'ric'='ASYMMETRIC'
(Other definitions for asymmetric that I've seen before include "women-only bars" , "crooked" , "kind of bars frequented by gymnasts" , "Unbalanced" , "Irregular" .)