Nervous about insect in hut (6)
I believe the answer is:
shanty
'hut' is the definition.
('shanty' can be a synonym of 'hut')
'nervous about insect' is the wordplay.
'nervous' becomes 'shy' (I've seen this in other clues).
'about' indicates putting letters inside.
'insect' becomes 'ant' (ant is a kind of insect).
'shy' going around 'ant' is 'SHANTY'.
'in' is the link.
(Other definitions for shanty that I've seen before include "Slum ghetto" , "folk song" , "low abode" , "sea air" , "A sailor's traditional song" .)