Tips from source upset dirty Fed (9)
I believe the answer is:
sustained
'fed' is the definition.
The answer and definition can be both related to consumption as well as being past participle verbs.
Maybe you can see an association between them that I can't see?
'tips from source upset dirty' is the wordplay.
'tips from' says to take the initial letters (letters on tips of the word).
'dirty' becomes 'stained' (made dirty by a stain).
The first letters of 'source upset' is 'su'.
'su'+'stained'='SUSTAINED'
Can you help me to learn more?
(Other definitions for sustained that I've seen before include "bore" , "Kept going, supported" , "held up" , "Steadily maintained" , "Steady" .)