Not moving goods yet (5-5)
I believe the answer is:
stock-still
'not moving' is the definition.
(I've seen this before)
'goods yet' is the wordplay.
'goods' becomes 'stock' (stock is a kind of goods).
'yet' becomes 'still' ('still' can be a synonym of 'yet'**).
'stock'+'still'='STOCK-STILL'
(Other definitions for stock-still that I've seen before include "Absolutely motionless" , "Without any movement" , "Completely motionless" .)