The most common and most likely answer to this crossword clue is the 5 letter word TRITE
I've seen this crossword clue in Financial Times
T
R
I
T
E
More clues leading to the result TRITE
- Banal ending for magnificent ceremony
- Nickel removed from salt for stock
- After time, ceremony becomes dull
- Worn-out fossil one to throw away
- Tired, tense author downing whiskey
- Commonplace section of last rites
- After time, ceremony becomes commonplace
- Unoriginal end to infant’s baptism?
- Some of convent rite lacking originality
- Commonplace fish ordered by posh diner?
Buddy explains!

The straight part
We know that "lacking originality" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case lacking originality = trite.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 TRITE mean?
TRITE adjective- Often in reference to a word or phrase: used so many times that it is commonplace, or no longer interesting or effective; worn out, hackneyed.
- So well established as to be beyond debate: trite law.
- A denomination of coinage in ancient Greece equivalent to one third of a stater.
- Trite, a genus of spiders, found in Australia, New Zealand and Oceania, of the family Salticidae.