Connect first of ropes and lift (6)
I believe the answer is:
Here is my best explanation:
'connect' is the definition.
(relating is a kind of connecting)
'first of ropes and lift' is the subsidiary indication.
'first of' says to take the initial letters.
'and' means one lot of letters go next to another.
'lift' becomes 'elate' (I've seen this before**).
The first letter of 'ropes' is 'r'.
(Other definitions for relate that I've seen before include "Describe an event", "Tell - marriage counsellors", "link", "Narrate or connect things", "Show sympathy", "Have to do with", "Tell; connect", "Report", "Tell, narrate" and "Do well; wave about".)