A cricket club occasionally eases admission (6)
I believe the answer is:
access
'admission' is the definition.
(I've seen this before)
'a cricket club occasionally eases' is the wordplay.
'cricket club' becomes 'cc' (cricketing abbreviation).
'occasionally' indicates alternate letters.
The alternate letters of 'eases' are 'ess'.
'a'+'cc'+'ess'='ACCESS'
(Other definitions for access that I've seen before include "Entry (code)" , "The right to use something or see someone" , "Approach/enter (a place)" , "The right to see, eg, children after divorce" , "Means of admittance or entrance" .)