Leeches and bugs in love informally (7-2)

I believe the answer is:

hangers-on

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'leeches' is the definition.
(hanger-on is a kind of leech)

'bugs in love informally' is the wordplay.
'bugs' becomes 'angers' (bug can mean to annoy or anger).
'in' is an insertion indicator.
'love informally' becomes 'hon' (I've seen this in another clue. I am not sure about the 'informally' bit.).
'angers' inserted within 'hon' is 'HANGERS-ON'.

'and' is the link.

Can you help me to learn more?

(Other definitions for hangers-on that I've seen before include "Sycophants, unwanted followers" , "Sycophantic followers - dependants" , "Persistent (and annoying) companions" , "Minions" , "Sycophantic associates" .)

I've seen this clue in The Daily Express.

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