Most minimal (5)
'most minimal' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for least that I've seen before include "Smallest in amount or degree" , "Bottom" , "Smallest part" , "Smallest in extent" , "Most unimportant" .)
'most minimal' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Another definition for barest that I've seen is " Merest".)