The most common and most likely answer to this crossword clue is the 6 letter word FODDER
I've seen this crossword clue in The Times
F
O
D
D
E
R
More clues leading to the result FODDER
- More rum after fine food
- Female stranger provides something to eat
- Heading for farm, more unusual cattle feed
- Feed friend initially, then stranger
- Expendable people’s forte: more rum
- Fellow has more rum and grub
- Food is fine, given more rum
- Feed stranger after first of friends
- Expendable soldiers more curious following chief’s rear
- Possibly after mix-up, ‘Foxtrot Oscar’ said theologian to the Queen
Buddy explains!

The straight part
We know that "Feed" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case feed = fodder.The cryptic/wordplay part
In cryptic crossword there's often an wordplay/cryptic part as well.This part involves a more complex hint, such as an anagram, homophone, hidden word, etc.
Sadly, We don't have an explanation for this specific crossword clue yet.
What does FODDER mean?
FODDER noun- Food for animals; that which is fed to cattle, horses, and sheep, such as hay, cornstalks, vegetables, etc.
- A load: various English units of weight or volume based upon standardized cartloads of certain commodities, generally around 1000 kg.
- (drafting) Tracing paper.
- Stuff; material; something that serves as inspiration or encouragement, especially for satire or humour.
- (cryptic crosswords) The text to be operated on (anagrammed, etc.) within a clue.
- To feed animals (with fodder).