Old, extremely late and in a daze? Show forbearance! (9)
I believe the answer is:
tolerance
'forbearance' is the definition.
(I've seen this before)
'old extremely late and in a daze? show' is the wordplay.
I cannot quite see how this works, but
'old' could be 'o' (common abbreviation eg in OE for Old English) and 'o' is found within the answer.
'and' could be 'n' (common abbreviation for 'and') and 'n' is found within the answer.
'a' is within the answer.
'show' could be 'er' (US medical drama) and 'er' is present in the answer.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for tolerance that I've seen before include "Willingness to accept the behaviour of others" , "Give" , "Allowable variation (in size)" , "See 10" , "ecumenical spirit?" .)