Can turn nit around (3)
I believe the answer is:
tin
'can turn' is the definition.
'tin' can be an answer for 'can' (both are metal containers). I am unsure of the 'turn' bit.
'nit around' is the wordplay.
'around' says the letters should be written in reverse.
'nit' reversed gives 'TIN'.
Can you help me to learn more?
(Other definitions for tin that I've seen before include "Silvery metallic element" , "1 down, symbol Sn" , "roofing material" , "Ready" , "Cornish metal?" .)