The most common and most likely answer to this crossword clue is the 5 letter word GULCH
I've seen this crossword clue in Financial Times
G
U
L
C
H
More clues leading to the result GULCH
- Haul put back beside church in valley
- Pass for American university lecturer visiting government agency briefly
- Caught lover’s head in embrace, falling into ravine
- Defile church after 22’s instruction
- Yank going up to church in the valley
- Glen returning clasp holding small letters
- Keep close when retreating round edges of Languedoc valley
- Lug around couch heartlessly in ravine
- Pull over leading pair in Cheddar Gorge
- Fertiliser that’s good for minute valley
Buddy explains!

The straight part
We know that "valley" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case valley = gulch.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 GULCH mean?
GULCH noun- A ravine-like or deep V-shaped valley, often eroded by flash floods; shallower than a canyon and deeper than a gully.
- An act of gulching or gulping.
- A glutton.
- To swallow greedily; to gulp down.
- To fall heavily.