Doctor about to understand, surrounded by colourful collection of devices? (8)
I believe the answer is:
gadgetry
'devices?' is the definition.
(I have seen 'ingenious devices' mean 'gadgetry' so perhaps 'devices' could also mean 'gadgetry')
'doctor about to understand surrounded by colourful collection' is the wordplay.
I cannot really understand how this works, but
'doctor' could be 'd' (eg in PhD, Doctor of Philosophy) and 'd' is found in the answer.
'about' could be 'a' (abbreviation in Chambers) and 'a' is present in the answer.
'understand' could be 'get' (getting is a kind of understanding) and 'get' is found in the answer.
This explanation may well be incorrect...
'of' is the link.
Can you help me to learn more?
(Other definitions for gadgetry that I've seen before include "Mechanical tools" , "Small ingenious devices in general" , "gismos" , "The making of small ingenious devices" .)