The most common and most likely answer to this crossword clue is the 9 letter word LATECOMER
I've seen this crossword clue in The Times
L
A
T
E
C
O
M
E
R
More clues leading to the result LATECOMER
- Three notes, the last penned by my entrant after deadline
- He’s after majority, damaging morale etc
- Clear to me, suffering, one gets there eventually?
- One delayed more surprisingly by US city investigator
- It's surprisingly clear to me one may be seen as fashionable in society?
- He turns up, after all
- It’s clear to me ground delayed arrival
- I’m behind schedule for La Mer, which includes wild brief love etc
- Molten metal core not an early development?
- Delayed arrival dispersed morale etc
Buddy explains!

The straight part
We know that "He’s after majority" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case he’s after majority = latecomer.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 LATECOMER mean?
LATECOMER noun- One who has arrived comparatively recently.
- One who arrived late.