The most common and most likely answer to this crossword clue is the 10 letter word PICCALILLI
I've seen this crossword clue in The Times
P
I
C
C
A
L
I
L
L
I
More clues leading to the result PICCALILLI
- Relish film about boxer, badly brought up
- Cull a flower, so to speak -- it adds zest to the course
- In a pickle, select a girl to speak
- Relish saying “choose a flower”
- Choose a flower, picked up with relish
- Head of lovely flower laid back, in image I relish
- Gather a flower, say, for East Indian food
- Choose a flower said to be in veggie condiment
- Cut a plant, they say it’s tasty
- Choose a flower, as you might say — something for the dining table
Buddy explains!

The straight part
We know that "Relish" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case relish = piccalilli.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 PICCALILLI mean?
PICCALILLI noun- A yellow pickle relish made from cauliflower, vegetable marrow, and other vegetables, pickled with vinegar, salt, sugar, and spiced with mustard, turmeric, and other spices.
- A pickle, typically on a base of chopped green (unripe) tomatoes, but sometimes finely-chopped gherkins, and possibly including other vegetables.