The most common and most likely answer to this crossword clue is the 8 letter word SALIVATE
I've seen this crossword clue in The Guardian
S
A
L
I
V
A
T
E
More clues leading to the result SALIVATE
- Drool when rising tardily about four
- Drinking one huge quantity of wine, fair to drool
- It’s vital swimming in rough sea to look forward with relish to good food
- Laxative’s working? Don’t get cross: it’s drivel
- Disposal must cover one barrel for water
- Drool on Spanish article returned to the island by Virginia with a note
- Spurs’ No.5, once quick round area, with time to dribble
Buddy explains!

The straight part
We know that "look forward with relish to good food" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case look forward with relish to good food = salivate.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 SALIVATE mean?
SALIVATE verb- To produce saliva.
- To show eager anticipation at the expectation of something.