Is it as low as you can get? (3)
I believe the answer is:
toe
'you can get?' is the definition.
I can't judge whether this defines the answer.
'is it as low' is the wordplay.
'is it' becomes 't' (abbreviation. e.g. in 'tis).
'as low' becomes 'oe' (I can't explain this - if you can you should believe this answer much more).
't'+'oe'='TOE'
'as' acts as a link.
Can you help me to learn more?
(Other definitions for toe that I've seen before include "one digit?" , "Conform-...the line" , "Front of shoe" , "Digit on foot" , "Extremity of the body" .)