27 across
Catalogue
standard
no
good
bugs
(7,2)
Catalogue standard no good bugs (7,2)
hints
0
checks
0
hints
The definition is at the end of the clue.
How the clue works
Right, so bugs at the end is your definition — as in eavesdropping, wiretapping, that sort of thing. Start with LIST for "catalogue", then take ENSIGN, meaning "standard" as in a flag, and whip out the G because "no good" tells you to drop the G (good being shorthand for G), leaving ENSIN. Stick LIST and ENSIN together and you get your answer.