We will block number given places at table? It’s easily done (2,5)
I believe the answer is:
Here is my best explanation:
'easily done' is the definition.
(I've seen this before)
'we will block number given places at table?' is the wordplay.
'will block' means one lot of letters goes inside another.
'number' becomes 'no' (abbreviation for 'number').
'given places at table?' becomes 'sat' (eg seated a party at a table in a restaurant).
'we' inserted into 'nosat' is 'NO SWEAT'.
'it's' acts as a link.
(Other definitions for no sweat that I've seen before include "That won't be a problem", "OK", "It's not a problem (colloq.)", "That's a piece of cake (anti-perspirant unnecessary!)", "easily done", "There shouldn't be any objection", "It's not a problem (result of using antiperspirant?)", "That's not a problem!", "Not a problem (US colloq.)" and "Not a problem! (informal)".)