A handy pointer (5,6)
'pointer?' is the definition.
(a finger may point at things)
I cannot understand how the rest of the clue works.
Can you help me to learn more?
(Other definitions for finger that I've seen before include "Sort of bowl" , "Index" , "Fringe (anag.)" , "Tell the cops" , "Slender part attached to the hand" .)
'a handy pointer' is the definition.
(I've seen this in another clue)
'handy pointer' is the wordplay.
'handy' becomes 'index' (I can't explain this - if you can you should believe this answer much more).
'pointer' becomes 'finger' (a finger may point at things).
'index'+'finger'='INDEX FINGER'
Can you help me to learn more?
(Other definitions for index finger that I've seen before include "Pointer" , "Digit normally used to point" , "Pointing digit" .)