The most common and most likely answer to this crossword clue is the 7 letter word HERRING
I've seen this crossword clue in Financial Times
H
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R
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More clues leading to the result HERRING
- Fish finger holds this for woman?
- Slipping on hard fish
- Hero of opera in girl's series of operas
- Husband straying? He might catch this!
- Husband going astray? Something fishy here
- Silver darling? Maybe bride expected this to be gold
- Harry initially going astray for swimmer
- What fiancee wears for operatic Albert
- Husband, not sinless but something of a catch?
- Fish going off past mouth of Humber
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 HERRING mean?
HERRING noun- A type of small, oily fish of the genus Clupea, often used as food.
- Fish in the family Clupeidae.
- Fish similar to those in genus Clupea, many of those in the order Clupeiformes.