Can't hit a barn door with stylish precision (12)
I believe the answer is:
inexactitude
'can't hit a barn door' is the definition.
I can't tell whether this defines the answer.
'with stylish precision' is the wordplay.
'with' is a charade indicator (letters next to each other).
'stylish' becomes 'in'.
'precision' becomes 'exactitude' (I've seen this before).
'in'+'exactitude' is 'INEXACTITUDE'.
Can you help me to learn more?
(Other definitions for inexactitude that I've seen before include "Lack of accuracy" , "Imprecision; a lie" .)