Dole cheque sent back home for start (6)
I believe the answer is:
origin
'for start' is the definition.
(I've seen this in another clue)
'dole cheque sent back home' is the wordplay.
'dole cheque' becomes 'giro' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'sent back' is a reversal indicator.
'home' becomes 'in' ('he's home' can mean 'he's in').
'giro' backwards is 'orig'.
'orig'+'in'='ORIGIN'
Can you help me to learn more?
(Other definitions for origin that I've seen before include "Where X meets Y" , "base" , "spring" , "Source, beginning point" , "Beginning, starting point" .)