Packing sausages is common practice (5)

I believe the answer is:

usage

'common practice' is the definition.
(I've seen this before)

'packing sausages is' is the wordplay.
'packing' says the answer is hidden in the clue.
'USAGE' can be found hidden inside 'sausages is'.

(Other definitions for usage that I've seen before include "phraseology" , "Interest of old" , "Way of treating" , "etiquette" , "Custom - treatment" .)

I've seen this clue in The Independent.

Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.