Cocky type rounded hill, was almost captured (4-3)
I believe the answer is:
know-all
'cocky type' is the definition.
The answer and definition can be both people as well as being singular nouns.
Maybe you can see a link between them that I don't see?
'rounded hill was almost captured' is the wordplay.
'rounded hill' becomes 'knoll' (I've seen this in another clue).
'almost' means to remove the last letter (most of the word but not all of it).
'captured' is an insertion indicator.
'was' with its last letter removed is 'wa'.
'knoll' going around 'wa' is 'KNOW-ALL'.
Can you help me to learn more?
(Other definitions for know-all that I've seen before include "Smarty-pants" , "Wise guy" , "Boastful person who behaves like repository of information" , "Clever clogs!" , "Pedantic" .)