Least fresh? Not fresh at all (5)
I believe the answer is:
stale
'not fresh at all' is the definition.
I can't tell whether this defines the answer.
'least fresh?' is the wordplay.
'fresh?' is an anagram indicator (I've seen 'fresh' mean this).
'least' is an anagram of 'STALE'.
Can you help me to learn more?
(Other definitions for stale that I've seen before include "Boring" , "no longer bearing interest?" , "Musty - out of date" , "past the sell-by date" , "Musty or hackneyed" .)