The most common and most likely answer to this crossword clue is the 5 letter word TEASE
I've seen this crossword clue in Independent
T
E
A
S
E
More clues leading to the result TEASE
- Guy taking time to relax
- Mock ultimately decadent leisure
- Drinks served to English guy
- Time to have relaxation, guy!
- Flirt with the lassies on and off
- Provoke supporters on course verbally
- Kid wants time to rest
- Guy the man sees from time to time
- Wind up with letters read aloud
- Kid needs letters to be read out
Buddy explains!

The straight part
We know that "guy" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case guy = tease.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 TEASE mean?
TEASE noun- One who teases.
- A single act of teasing.
- One who deliberately arouses others (usually men) sexually with no intention of satisfying that arousal.
- To separate the fibres of a fibrous material.
- To comb (originally with teasels) so that the fibres all lie in one direction.
- To back-comb.
- To poke fun at.
- To provoke or disturb; to annoy.
- To manipulate or influence the behavior of, especially by repeated acts of irritation.
- To entice, tempt.
- To show as forthcoming, in the manner of a teaser.