Inspector runs after aroused voyeurs (8)
I believe the answer is:
surveyor
'inspector' is the definition.
(I've seen this before)
'runs after aroused voyeurs' is the wordplay.
'runs' becomes 'r' (abbreviation in cricket).
'after' says to put letters next to each other.
'aroused' indicates an anagram (letters roused or stirred up into a new form).
'voyeurs' is an anagram of 'surveyo'.
'r' put after 'surveyo' is 'SURVEYOR'.
(Other definitions for surveyor that I've seen before include "Official inspector" , "Building inspector" , "Building examiner" , "Land or building measurer" , "Engineer who provides map-making data" .)