Gutting easier, after bottom of boat secured new cushion (7)
I believe the answer is:
kneeler
'cushion' is the definition.
(cushion for kneeling on)
'gutting easier after bottom of boat secured new' is the wordplay.
'gutting' suggests removing the centre (I've seen 'gut' mean this (gut can mean to remove the insides of)).
'after' is a charade indicator (letters next to each other).
'bottom of boat' becomes 'keel' (I've seen this before).
'secured' means one lot of letters goes inside another (inserted letters secured inside).
'new' becomes 'n' (common abbreviation eg NT for New Testament).
'easier' with its middle removed is 'er'.
'keel' going around 'n' is 'kneel'.
'er' put after 'kneel' is 'KNEELER'.
(Other definitions for kneeler that I've seen before include "Hassock" , "Cushion provided in church" , "Church pew cushion" , "It supports bended joints (in church?)" , "Cushion in chuch pew" .)