The most common and most likely answer to this crossword clue is the 6 letter word ASSENT
I've seen this crossword clue in The Daily Telegraph
A
S
S
E
N
T
More clues leading to the result ASSENT
- Agreement as communicated
- Agree rise on the radio
- Exactly how things were dispatched for approval
- Advantage, securing Nanny’s initial approval
- Agreement from number overwhelmed by strength
- Announced 1¢ grant
- Good thing about name in form posted? OK
- Approval for top grades issued
- Nod when told to go?
- Help to secure new agreement
Buddy explains!

The straight part
We know that "Yield" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case yield = assent.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 ASSENT mean?
ASSENT noun- Agreement; act of agreeing
- To agree; to give approval.
- To admit a thing as true.