Spend (6)
'spend' is the definition.
(I know that use up is a more specific form of the action spend)
This is all the clue.
(Other definitions for use up that I've seen before include "Consume (stocks)" , "Exhaust (resources)" , "Entirely consume" , "Expend" , "Completely consume" .)
'spend' is the definition.
(I know that invest is a more specific form of the action spend)
This is all the clue.
(Other definitions for invest that I've seen before include "as Greeks did to Troy?" , "Put money or effort into" , "Eg, buy stocks and shares" , "speculate?" , "Formally place in office" .)