Rushing Ben in yarn I contrived (2,1,5)
I believe the answer is:
in a hurry
'rushing' is the definition.
(I've seen this before)
'ben in yarn i contrived' is the wordplay.
'ben' becomes 'hur' (ben hur is a religious drama film).
'in' is an insertion indicator.
'contrived' indicates anagramming the letters.
'yarn'+'i'='yarni'
'yarni' with letters rearranged gives 'inary'.
'hur' put into 'inary' is 'IN A HURRY'.
(Other definitions for in a hurry that I've seen before include "Rushed for time" , "Rushing" .)