The most common and most likely answer to this crossword clue is the 7 letter word DISOBEY
I've seen this crossword clue in Financial Times
D
I
S
O
B
E
Y
Buddy explains!

The straight part
We know that "Resist" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case resist = disobey.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 DISOBEY mean?
DISOBEY verb- To refuse or (intentionally) fail to obey an order of (somebody).
- To refuse or (intentionally) fail to obey.