The most common and most likely answer to this crossword clue is the 4 letter word PEEL
I've seen this crossword clue in Financial Times
P
E
E
L
Buddy explains!

The straight part
We know that "to stri" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case to stri = peel.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 PEEL mean?
PEEL noun- (usually uncountable) The skin or outer layer of a fruit, vegetable, etc.
- The action of peeling away from a formation.
- A cosmetic preparation designed to remove dead skin or to exfoliate.
- To remove the skin or outer covering of.
- To remove something from the outer or top layer of.
- To become detached, come away, especially in flakes or strips; to shed skin in such a way.
- To remove one's clothing.
- To move, separate (off or away).
- A stake.
- A fence made of stakes; a stockade.
- A small tower, fort, or castle; a keep.
- A shovel or similar instrument, now especially a pole with a flat disc at the end used for removing pizza or loaves of bread from a baker's oven.
- A T-shaped implement used by printers and bookbinders for hanging wet sheets of paper on lines or poles to dry.
- The blade of an oar.
- An equal or match; a draw.
- A takeout which removes a stone from play as well as the delivered stone.
- To play a peel shot.
- To send through a hoop (of a ball other than one's own).
- To plunder; to pillage, rob.
- A small salmon; a grilse; a sewin.