Crossword Genius

Ice mass broken off a little lower? (4)

Ross

I believe the answer is:

calf

I'm a little stuck... Click here to teach me more about this clue!

'little lower?' is the definition.
(little cow - 'low' can mean to make a mooing sound)

I don't understand how the remainder of the clue works.

Can you help me to learn more?

(Other definitions for calf that I've seen before include "Muscular back of the shank" , "Baby cow" , "A little lower" , "Young animal; part of body" , "Young of domestic cattle" .)

I've seen this clue in The Sun.
Want a hint initially instead of a full solution? Install my app