Time in Ulster to make an entrance (9)
I believe the answer is:
turnstile
'an entrance' is the definition.
The definition and answer can be both man-made objects as well as being singular nouns.
Perhaps you can see an association between them that I can't see?
'time in ulster to make' is the wordplay.
'time' becomes 't' (abbreviation).
'to make' indicates anagramming the letters.
'in'+'ulster'='inulster'
'inulster' anagrammed gives 'urnstile'.
't'+'urnstile'='TURNSTILE'
Can you help me to learn more?
(Other definitions for turnstile that I've seen before include "Means of regulating passage" , "gateway" , "Admission gate" , "Rotating gate" , "Mechanical entry gate" .)