The most common and most likely answer to this crossword clue is the 8 letter word CAPACITY
C
A
P
A
C
I
T
Y
More clues leading to the result CAPACITY
- Cover a municipal role
- Limit a large town’s power
- Function from better area, urban one
- Volume better to the west of a large town
- Put a limit on a conurbation that’s maximum size
- Size limit put on one place where many live
- Better, a civic role
- Skill seen in Crown Derby for example
- Limit European policy connected with a built-up area
- . Following rising current shortage, cut University's power
Buddy explains!

The straight part
We know that "power" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case power = capacity.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 CAPACITY mean?
CAPACITY noun- The ability to hold, receive or absorb
- A measure of such ability; volume
- The maximum amount that can be held
- Capability; the ability to perform some task
- The maximum that can be produced.
- Mental ability; the power to learn
- A faculty; the potential for growth and development
- A role; the position in which one functions
- Legal authority (to make an arrest for example)
- Electrical capacitance.
- (operations) The maximum that can be produced on a machine or in a facility or group.
- Filling the allotted space.