A toe or two perhaps? (5)
I believe the answer is:
digit
I believe this clue is a double definition.
'a toe' is the first definition.
(I have seen 'E.g. toe ' mean 'digit' so perhaps 'toe' could also mean 'digit')
'two perhaps?' is the second definition.
(two is a kind of digit)
'or' acts as a link.
(Other definitions for digit that I've seen before include "Single number" , "one of several at hand" , "One in ten, say" , "Need a bit of a hand" , "finger, perhaps" .)