The most common and most likely answer to this crossword clue is the 6 letter word YIELDS
I've seen this crossword clue in The Times
Y
I
E
L
D
S
More clues leading to the result YIELDS
Buddy explains!

The straight part
We know that "Crops" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case crops = yields.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 YIELDS mean?
YIELDS verb- To pay, give in payment; repay, recompense; reward; requite.
- To furnish; to afford; to render; to give forth.
- To give way; to allow another to pass first.
- To give as required; to surrender, relinquish or capitulate.
- To give, or give forth, (anything).
- To give way; to succumb to a force.
- To produce as return, as from an investment.
- To produce as a result.
- To produce a particular sound as the result of a sound law.
- (of a material specimen) To pass the material's yield point and undergo plastic deformation.
- To admit to be true; to concede; to allow.
- Payment; tribute.
- A product; the quantity of something produced.
- The current return as a percentage of the price of a stock or bond.
- Profit earned from an investment; return on investment.