One in charge of large tour abroad (9)
I believe the answer is:
regulator
'one in charge' is the definition.
The definition and answer can be both man-made objects as well as being singular nouns.
Perhaps they are linked in a way I don't understand?
'large tour abroad' is the wordplay.
'abroad' indicates anagramming the letters (letters move around or go abroad).
'large'+'tour'='largetour'
'largetour' is an anagram of 'REGULATOR'.
'of' is the link.
Can you help me to learn more?
(Other definitions for regulator that I've seen before include "Ofsted perhaps" , "Controlling device" , "Controller" , "Of body" , "Governor" .)