The most common and most likely answer to this crossword clue is the 7 letter word RATINGS
I've seen this crossword clue in The Daily Telegraph
R
A
T
I
N
G
S
More clues leading to the result RATINGS
- Assessments of sailors?
- Juniors on board watching figures
- Ordinary seamen viewing figures
- Workers on board? Programmes could benefit from them
- TV executives think they are very important sailors
- Assessments for those at sea
- Seamen in tatty clothes collecting money
- Seamen can put forth in tattered clothing
- TV bosses show an interest in these sailors
- Grades metal with kids outside
Buddy explains!

The straight part
We know that "Navy personnel/scores on TripAdvisor" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case navy personnel/scores on tripadvisor = ratings.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 RATINGS mean?
RATINGS noun- A position on a scale
- An evaluation of status, especially of financial status
- A number, letter, or other mark that refers to the ability of something.
- A seaman in a warship
- The status of a seaman, corresponding to rank in officers.