Cryptic crossword clue
Silver coins given for processed grains 6

The most common and most likely answer to this crossword clue is the 6 letter word GROATS

I've seen this crossword clue in The Guardian
G
R
O
A
T
S

Buddy explains!

The straight part
We know that "Silver coins/processed grains" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case silver coins/processed grains = groats.
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 GROATS mean?

GROATS noun
  1. (chiefly in the plural) Hulled grain.
GROATS noun
  1. Any of various old coins of England and Scotland.
  2. A historical English silver coin worth four English pennies, still minted as one of the set of Maundy coins.
  3. A proverbial small sum; a whit or jot.

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