Released some of the funds I had (5)
I believe the answer is:
undid
'released' is the definition.
(I've seen this before)
'some of the funds i had' is the wordplay.
'some of' indicates the central letters (I've seen 'some' mean this).
'i had' becomes 'I'd' (contraction).
The middle of 'funds' is 'und'.
'und'+'id'='UNDID'
(Other definitions for undid that I've seen before include "Loosened; ruined" , "Cancelled - destroyed" , "Released" , "solved knotty problem" , "Cancelled, reversed (an action)" .)