The most common and most likely answer to this crossword clue is the 7 letter word ESSAYER
I've seen this crossword clue in The Guardian
E
S
S
A
Y
E
R
More clues leading to the result ESSAYER
- He tries tips from Erasmus, say, with indication of hesitation
- English crime writer finally promoted? She's trying!
- Easy in gold and bronze positions, one speaking as a trier
- He makes effort regularly senses philosopher
- Seemingly one without a lisp, dropping a sibilant, but he tries
- One who tries to speak, interrupting seer stupidly
- One who tries Pope, amongst others, I’d like to think
Buddy explains!
The straight part
We know that "a trier" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case a trier = essayer.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.