The most common and most likely answer to this crossword clue is the 4 letter word OWNS
I've seen this crossword clue in Independent
O
W
N
S
More clues leading to the result OWNS
- Has snow melted?
- Confesses nothing and succeeds, disregarding one
- Acknowledges dresses no good
- Has leaders of Oprah Winfrey Network sacked
- Admits one was needing support first of all
- Has touching second, holding wife
- Maintaining wife, supported by special grants
- Has wrongly won point
- Has grown strangely partial
- Has planted first of seeds to appear last
Buddy explains!

The straight part
We know that "grants" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case grants = owns.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 OWNS mean?
OWNS verb- To have rightful possession of (property, goods or capital); to have legal title to.
- To have recognized political sovereignty over a place, territory, as distinct from the ordinary connotation of property ownership.
- To defeat or embarrass; to overwhelm.
- To virtually or figuratively enslave.
- To defeat, dominate, or be above, also spelled pwn.
- To illicitly obtain superuser or root access to a computer system, thereby having access to all of the user files on that system; pwn.
- To grant; give.
- To admit, concede, grant, allow, acknowledge, confess; not to deny.
- To admit; concede; acknowledge.
- To take responsibility for.
- To answer to.
- To recognise; acknowledge.
- To claim as one's own.
- To confess.