Cautious ponder (10)
I believe the answer is:
deliberate
This clue is a double definition.
'cautious' is the first definition.
(I've seen this before)
'ponder' is the second definition.
(deliberating is a kind of pondering)
(Other definitions for deliberate that I've seen before include "Intended" , "Well considered" , "Purposeful" , "Studied" , "Cautious" .)