Stray stayed with us several times a month (8)
I believe the answer is:
tuesdays
'several times a month' is the definition.
I can't judge whether this defines the answer.
'stray stayed with us' is the wordplay.
'stray' is an anagram indicator.
'with' says to put letters next to each other.
'stayed' after 'us' is 'usstayed'.
'usstayed' is an anagram of 'TUESDAYS'.
Can you help me to learn more?
(Other definitions for tuesdays that I've seen before include "''... child is full of grace'' (7'1)" , "24-hour periods?" , "Nautical jacket" , "Weekdays steady us" .)