Outskirts of Hackney within reach? (5)
I believe the answer is:
'within reach?' is the definition.
(I've seen this in another clue)
I don't understand how the remainder of the clue works.
Can you help me to learn more?
(Other definitions for handy that I've seen before include "Convenient; skilful" , "Close by" , "Useful - competent" , "Near; useful" , "Convenient summary" .)