"It's quite high, on a building," we put in (3)
I believe the answer is:
tor
'in' is the definition.
Although both the answer and definition are singular nouns, I cannot understand how one could define the other.
'it's quite high on a building we' is the wordplay.
I cannot really understand how this works, but
'on' could be 'to' and 'to' is found within the answer.
A single letter 'r' remains which might be clued in a way I don't understand.
This explanation may well be incorrect...
'put' acts as a link.
Can you help me to learn more?
(Other definitions for tor that I've seen before include "Rot on a Cornish hill" , "Hill or rocky peak" , "Rot on rocky peak" , "Rocky crag" , "Rot on a peak in Devon" .)