When will house masters assemble? (5)
I believe the answer is:
amass
'assemble?' is the definition.
(I've seen this before)
'when will house masters' is the wordplay.
'when' becomes 'as' (eg 'when I walked' means 'as I walked').
'will house' becomes 'ams' (I can't explain this - if you can you should give a lot more credence to this answer).
'masters' means one lot of letters goes inside another (inserted letters are controlled or mastered).
'as' going into 'ams' is 'AMASS'.
Can you help me to learn more?
(Other definitions for amass that I've seen before include "Assemble" , "run up?" , "Collect or gather" , "Sodium chloride" , "Get together" .)