Links up over wire to capture unpleasant insect (5,3)

'unpleasant insect' is the definition.
(stink bugs smell bad)

'links up over wire' is the wordplay.
'links' becomes 'knits' (knit can mean to link together).
'up' shows that the letters should be reversed in order (in down clue: letters go upwards).
'over' is a charade indicator (letters next to each other) (in a down clue, some letters go over others).
'wire' becomes 'bug'.
'knits' backwards is 'stink'.
'stink'+'bug'='STINK BUG'

'to capture' acts as a link.
I am not very happy about this link. Some or all of it may belong to another bit of the clue.

Can you help me to learn more?