Cryptic crossword clue
Each alternate model taken up here, nearly always to the top 5,5

The most common and most likely answer to this crossword clue is the 5 plus 5 letter word EVERY OTHER

I've seen this crossword clue in Financial Times
E
V
E
R
Y
O
T
H
E
R

Buddy explains!

The straight part
We know that "Each alternate" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case each alternate = every other.
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.

Crossword Answer definitions

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