A blue novel about endless sex apt to be drawn on? (7)
I believe the answer is:
useable
'apt to be drawn on?' is the definition.
I can't tell whether this definition defines the answer.
'a blue novel about endless sex' is the wordplay.
'novel' indicates an anagram (letters in a new or novel order).
'about' indicates putting letters inside.
'endless' means to remove the last letter.
'a'+'blue'='ablue'
'ablue' with letters rearranged gives 'uable'.
'sex' with its final letter removed is 'se'.
'uable' enclosing 'se' is 'USEABLE'.
Can you help me to learn more?
(Another definition for useable that I've seen is " deployed".)