The most common and most likely answer to this crossword clue is the 4 letter word HINT
I've seen this crossword clue in The Times
H
I
N
T
More clues leading to the result HINT
- Tip: horse is not trying, just starting
- New parts have an effect on signal
- Suggestion made by husband in jest, ultimately
- Clue that's hard in Times initially
- What's essential to distinguish, in this clue
- Clue penned by wordsmith in Times
- Suggest knight is involved in planned murder
- Clue from winner eclipsing Boatman’s last
- Suggestion inadequate, first to last
- Suspicion of faith, in truth
Buddy explains!

The straight part
We know that "Tip" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case tip = hint.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 HINT mean?
HINT noun- A clue.
- A tacit suggestion that avoids a direct statement.
- A small, barely detectable amount of.
- Information in a computer-based font that suggests how the outlines of the font's glyphs should be distorted in order to produce, at specific sizes, a visually appealing pixel-based rendering. Also known as hinting.
- An opportunity; occasion; fit time.
- To suggest tacitly without a direct statement; to provide a clue.
- To bring to mind by a slight mention or remote allusion; to suggest in an indirect manner.
- To develop and add hints to a font.