Figure 101 suggested? (4)
I believe the answer is:
cone
'figure' is the definition.
(I've seen this before)
I can't explain the rest of the clue.
Can you help me to learn more?
(Other definitions for cone that I've seen before include "Tapering shape" , "Hollow object associated with ice cream and motorways" , "Motorway menace" , "99, maybe" , "it may hold ice-cream" .)