Put out LP? Miss securing source of funds (9)
I believe the answer is:
discomfit
'put out' is the definition.
(thesaurus)
'lp? miss securing source of funds' is the wordplay.
'lp?' becomes 'disc' (lp is a kind of disc).
'miss' becomes 'omit' ('omit' can be a synonym of 'miss'**).
'securing' indicates putting letters inside.
'source of' says to take the initial letters.
The initial letter of 'funds' is 'f'.
'omit' placed around 'f' is 'omfit'.
'disc'+'omfit'='DISCOMFIT'
(Other definitions for discomfit that I've seen before include "Rattle" , "Embarrass" , "Make uneasy or embarrassed" , "Upset" , "Throw" .)