The most common and most likely answer to this crossword clue is the 3 letter word ASK
A
S
K
Buddy explains!

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 ASK mean?
ASK noun- An act or instance of asking.
- Something asked or asked for.
- An asking price.
- To request (information, or an answer to a question).
- To put forward (a question) to be answered.
- To interrogate or enquire of (a person).
- To request or petition; usually with for.
- To request permission to do something.
- To require, demand, claim, or expect, whether by way of remuneration or return, or as a matter of necessity.
- To invite.
- To publish in church for marriage; said of both the banns and the persons.
- To take (a person's situation) as an example.
- An eft; newt.
- A lizard.