Key worker's nap routine disrupted? (5,5)
I believe the answer is:
piano tuner
'key worker's' is the definition.
'piano tuner' can be an answer for 'worker's' (piano tuner is a kind of worker). I am unsure of the 'key' bit.
'nap routine disrupted?' is the wordplay.
'disrupted?' is an anagram indicator.
'nap'+'routine'='naproutine'
'naproutine' anagrammed gives 'PIANO TUNER'.
Can you help me to learn more?
(Other definitions for piano tuner that I've seen before include "Instrument adjuster" , "Grand adjuster?" , "one with a fine ear?" .)