Plan again, with money being invested in harvest (5)
I believe the answer is:
remap
'plan again' is the definition.
I don't know anything about this answer so I cannot judge whether it can be defined by this definition.
'money being invested in harvest' is the wordplay.
'money' becomes 'm' (abbreviation used in economics).
'being invested in' is an insertion indicator.
'harvest' becomes 'reap' (synonyms).
'm' inserted within 'reap' is 'REMAP'.
'with' acts as a link.
Can you help me to learn more?
(Other definitions for remap that I've seen before include "Draw a plan again" , "Survey (area) again" , "(In computing) change the assignment of a function to a key" , "chart again" , "Plot again" .)