The most common and most likely answer to this crossword clue is the 7 letter word REPLICA
I've seen this crossword clue in The Times
R
E
P
L
I
C
A
More clues leading to the result REPLICA
- Papa, enthralled by antique item, getting a copy
- Softly trace around a copy
- Real pic? It's phoney copy
- Copy missing two pages, paper clip loose
- Saint's bone perhaps full of power, a model
- Copy beginning of record I found in unexpected place
- Copy page in souvenir article
- Salesman left in charge with a copy
- Power in sacred object and a copy
- Souvenir article retaining little power - a facsimile
Buddy explains!

The straight part
We know that "model" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case model = replica.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 REPLICA mean?
REPLICA noun- An exact copy.
- A copy made at a smaller scale than the original.