The most common and most likely answer to this crossword clue is the 7 letter word ERECTOR
I've seen this crossword clue in The Guardian
E
R
E
C
T
O
R
More clues leading to the result ERECTOR
- English head of college and builder
- One puts up English clergyman
- One putting up with voter switching from left to right
- One puts up vicar after tea, essentially
- Point to head of college as one responsible for a put-up job
- One will set up English clergyman
- One puts up with English clergyman
- One puts up with English vicar
- Muscle power, taking no prisoner, overwhelms East End bully
Buddy explains!

The straight part
We know that "builder" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case builder = erector.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 ERECTOR mean?
ERECTOR noun- A person who, or a device which erects.
- Any of several muscles that make parts of the body erect.
- An attachment to a microscope, telescope, etc. for making the image erect instead of inverted.
- A vehicle used to support a rocket for transportation and for placing the rocket in an upright position within a gantry scaffold.