The most common and most likely answer to this crossword clue is the 7 letter word CAREFUL
C
A
R
E
F
U
L
More clues leading to the result CAREFUL
- Sensible judge - cracking old headdress
- Cautious driver and passengers keeping safe, ultimately
- Wary of motoring organisation backing fuel modification
- A cruel fellow on the rampage? Watch out!
- About 5 people in a Mini conserving energy to be prudent
- Vehicle fuel not properly guarded
- Meticulous preparation of fair clue lacking interest
- Tight-fisted Whistler wearing an old woman’s hairnet
- Particular motor fuel developed
- Exercising caution seeing English in vehicle loaded to capacity
Buddy explains!

The straight part
We know that "guarded" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case guarded = careful.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 CAREFUL mean?
CAREFUL adjective- Taking care; attentive to potential danger, error or harm; cautious.
- Conscientious and painstaking; meticulous.
- Full of care or grief; sorrowful, sad.
- Full of cares or anxiety; worried, troubled.