The most common and most likely answer to this crossword clue is the 6 letter word PLUMBS
P
L
U
M
B
S
Buddy explains!

The straight part
We know that "Explores" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case explores = plumbs.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 PLUMBS mean?
PLUMBS noun- The fruit and its tree.
- Extended senses.
- A little mass of lead, or the like, attached to a line, and used by builders, etc., to indicate a vertical direction.
- A weight on the end of a long line, used by sailors to determine the depth of water.
- The perpendicular direction or position.
- To determine the depth, generally of a liquid; to sound.
- To attach to a water supply and drain.
- To think about or explore in depth, to get to the bottom of, especially to plumb the depths of.
- To use a plumb bob as a measuring or aligning tool.
- To accurately align vertically or horizontally.
- To seal something with lead.
- To work as a plumber.
- To fall or sink like a plummet.
- To trace a road or track; to follow it to its end.
- To position vertically above or below.