The most common and most likely answer to this crossword clue is the 9 letter word LEGISLATE
I've seen this crossword clue in Financial Times
L
E
G
I
S
L
A
T
E
More clues leading to the result LEGISLATE
- Cricket side misses the deadline to make rules
- Make laws on introduction of inflammable rubbish
- Member is behind what parliaments can do
- Member misses deadline to vote through law
- Member is arriving after time to enact law
- Allege it’s criminal to lay down laws
- Prescribe line, for example, given one’s behind time
- Make laws member’s passed on
- What MPs do as a member hasn’t turned up yet
- Make provision as member’s missed appointment
Buddy explains!

The straight part
We know that "What MPs do" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case what mps do = legislate.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 LEGISLATE mean?
LEGISLATE verb- To pass laws (including the amending or repeal of existing laws).