She can somehow realise on investments (6)

I believe the answer is:

encash

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'realise on investments' is the definition.
'encash' can be an answer for 'realise' (I've seen this before). I am unsure of the 'on investments' bit.

'she can somehow' is the wordplay.
'somehow' is an anagram indicator.
'she'+'can'='shecan'
'shecan' is an anagram of 'ENCASH'.

Can you help me to learn more?

(Other definitions for encash that I've seen before include "Turn (cheque) to money" , "Realise" , "Change to different sort of dough" , "one can do this at the bank" .)

I've seen this clue in The Irish News.

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