The most common and most likely answer to this crossword clue is the 7 letter word MINIMAL
M
I
N
I
M
A
L
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 MINIMAL mean?
MINIMAL adjective- The smallest possible amount, quantity, or degree.
- Characterised by the use of simple form or structures.
- Characterised by the repetition and gradual alteration of short phrases.