Recording unit reconnoitre around burrow (8)
I believe the answer is:
cassette
'recording unit' is the definition.
'cassette' can be an answer for 'recording' (I've seen this before). I am unsure of the 'unit' bit.
'reconnoitre around burrow' is the wordplay.
'reconnoitre' becomes 'case' (I've seen this before).
'around' indicates putting letters inside.
'burrow' becomes 'sett' (I've seen this before).
'case' placed around 'sett' is 'CASSETTE'.
Can you help me to learn more?
(Other definitions for cassette that I've seen before include "sealed plastic container" , "Tape unit" , "Container that holds a magnetic tape" , "Tape format" , "recording device" .)