Amass (10)
'amass' is the definition.
(synonyms)
This is the entire clue.
(Another definition for accumulate that I've seen is " Amass".)
'amass' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for stockpile that I've seen before include "Store in large quantities" , "Accumulated goods" , "Large accumulation" , "Reserve supply (of weapons)" , "Save" .)
'amass' is the definition.
(I know that amass can be written as hoard)
This is all the clue.
(Other definitions for hoard that I've seen before include "Squirrel away" , "(Miser's) store" , "Collection" , "Amass secretly" , "Reserve supply" .)
(Another definition for runup that I've seen is " Having hoisted".)
'amass' is the definition.
(I know that amass can be written as gather)
This is all the clue.
(Other definitions for gather that I've seen before include "put in pleats" , "The rag (anag.)" , "Come/bring together" , "Congregate" , "Assemble or glean" .)