Think, ponder (7)
I believe the answer is:
reflect
I believe this clue is a double definition.
'think' is the first definition.
(I know that reflect is a more specific form of the action think)
'ponder' is the second definition.
(I know that ponder can be written as reflect)
(Other definitions for reflect that I've seen before include "Ponder, contemplate" , "Meditate -- throw back" , "Ponder - mirror" , "shed" , "chew the cud" .)