The most common and most likely answer to this crossword clue is the 7 letter word ROOTING
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More clues leading to the result ROOTING
Buddy explains!

The straight part
We know that "Gett/ing set/cheering" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case gett/ing set/cheering = rooting.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 ROOTING mean?
ROOTING verb- To grow roots; to enter the earth, as roots; to take root and begin to grow.
- To prepare, oversee, or otherwise cause the rooting of cuttings
- To be firmly fixed; to be established.
- To get root or priviledged access on a computer system or mobile phone, often through bypassing some security mechanism.
- To turn up or dig with the snout.
- (by extension) To seek favour or advancement by low arts or grovelling servility; to fawn.
- To rummage; to search as if by digging in soil.
- To root out; to abolish.
- To have sexual intercourse.
- (with "for" or "on") To cheer (on); to show support (for) and hope for the success of. (See root for.)
- A system of roots; a secure attachment (in something); a firm grounding.
- The process of forming roots.
- A method of creating a new plant by getting part of an existing plant to form roots.
- A hole formed by a pig when it roots in the ground.