To get ahead take the other man's place (7)
I believe the answer is:
succeed
This could be a double definition.
'to get ahead' is the first definition.
(thesaurus)
'take the other man's place' is the second definition.
'succeed' can be an answer for 'take' (thesaurus). I am not certain of the 'the other man's place' bit.
Can you help me to learn more?
(Other definitions for succeed that I've seen before include "Prosper; follow" , "Come after or achieve a goal" , "what prince royal might do" , "Follow in order" , "Achieve the desired result" .)