Salesman blocked by old woman? Plan again (5)
I believe the answer is:
remap
'plan again' is the definition.
I know nothing about this answer so I can't judge whether it can be defined by this definition.
'salesman blocked by old woman?' is the wordplay.
'salesman' becomes 'rep' (sales rep).
'blocked by' means one lot of letters goes inside another (block can mean to plug a gap in something).
'old woman?' becomes 'ma' (both can mean someone's mother).
'rep' placed around 'ma' is 'REMAP'.
Can you help me to learn more?
(Other definitions for remap that I've seen before include "(In computing) change the assignment of a function to a key" , "Draw a plan again" , "Survey (area) again" , "Plot again" , "Make new plans" .)