Discretion to delay when clubs will appear for sale (7)
I believe the answer is:
auction
'sale' is the definition.
(I've seen this before)
'discretion to delay when clubs will appear' is the wordplay.
I cannot quite see how this works, but
'when' could be 'on' (I've seen this in other clues) and 'on' is located in the answer.
'clubs' could be 'c' (abbreviation used in card games such as bridge) and 'c' is found in the answer.
This explanation may well be incorrect...
'for' is the link.
Can you help me to learn more?
(Other definitions for auction that I've seen before include "Public sale by bid" , "Public bidding sale" , "Use caution at public sale" , "Public sale to the highest bidder" , "Public sale with lots" .)