Get gun out a little bit (6)
I believe the answer is:
nugget
'a little bit' is the definition.
'nugget' can be an answer for 'bit' (I have seen 'bit of gold' mean 'nugget' so perhaps 'bit' could also mean 'nugget'). I am unsure of the 'a little' bit.
'get gun out' is the wordplay.
'out' indicates an anagram (out can mean wrong or inaccurate).
'get'+'gun'='getgun'
'getgun' with letters rearranged gives 'NUGGET'.
Can you help me to learn more?
(Other definitions for nugget that I've seen before include "thing from the pit?" , "Lump of gold in natural state" , "small, valuable item" , "quantity of gold?" , "Rough lump of gold" .)