Leeches like limpets? (7-2)
I believe the answer is:
hangers-on
This clue could be a double definition.
'leeches' is the first definition.
(hanger-on is a kind of leech)
'limpets?' is the second definition.
Although both the answer and definition are plural nouns, I cannot see how one could define the other.
'like' is the link.
Can you help me to learn more?
(Other definitions for hangers-on that I've seen before include "Sycophantic followers - dependants" , "Minions" , "Sycophants, unwanted followers" , "Sycophantic associates" , "Persistent (and annoying) companions" .)