The most common and most likely answer to this crossword clue is the 7 letter word SENATOR
I've seen this crossword clue in The Times
S
E
N
A
T
O
R
More clues leading to the result SENATOR
- Politician hiding at a Spanish address
- Legislator, chap in Madrid, going about a tango
- Parliamentarian finally welcomed by constituency, or statesman
- I must leave notaries milling around politician
- Spanish man clutching at politician?
- New in constituency, old Republican politician
- Head of security near to troubled US politician
- Legislator spilt no tears
- Oldie wants a Tory initially to replace Independent politician
- Guy from Valencia maybe clutching at politician?
Buddy explains!

The straight part
We know that "politician" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case politician = senator.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 SENATOR mean?
SENATOR noun- A member, normally elected, in the house or chamber of a legislature called a senate. The legislatures of the United States and Canada have senators.
- A position in government held in ancient Rome by experienced, elder officials as advisors or consultants for younger, less experienced functionaries.
- A member of the king's council.