Haphazardly deploy money to split atom (2,6)
I believe the answer is:
at random
'haphazardly' is the definition.
(I know that haphazardly can be written as at random)
'money to split atom' is the wordplay.
'money' becomes 'rand' (currency of South Africa).
'to split' means one lot of letters goes inside another (some letters split a word into two).
'rand' going within 'atom' is 'AT RANDOM'.
'deploy' acts as a link.
I am not very happy about this link. It may belong to another bit of the clue.
Can you help me to learn more?
(Other definitions for at random that I've seen before include "Casually" , "without prior arrangement" , "without purpose" , "In no prearranged order" , "Haphazard" .)