Famine, so gather nuts! (8)
I believe the answer is:
shortage
'famine' is the definition.
('shortage' can be a synonym of 'famine')
'so gather nuts' is the wordplay.
'nuts' indicates an anagram (nuts can mean crazy).
'so'+'gather'='sogather'
'sogather' with letters rearranged gives 'SHORTAGE'.
(Other definitions for shortage that I've seen before include "Insufficiency" , "Her goats (anag)" , "may put price up" , "Scarcity" , "Want" .)