The most common and most likely answer to this crossword clue is the 7 letter word TEAPOTS
I've seen this crossword clue in The Daily Telegraph
T
E
A
P
O
T
S
More clues leading to the result TEAPOTS
Buddy explains!
The straight part
We know that "them" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case them = teapots.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 TEAPOTS mean?
TEAPOTS noun- A vessel for brewing and serving tea.