Therefore at that point I dropped the ice (6)
I believe the answer is:
thence
'therefore at that point i dropped the ice' is the definition.
'thence' can be an answer for 'therefore' (thesaurus). I'm not certain of the remainder of the definition.
'therefore at that' is the wordplay.
'therefore' becomes 'hence' (synonyms).
'at' means one lot of letters go next to another (I've seen this in other clues).
'that' becomes 't' (this might be a standard abbreviation which I don't know about).
'hence' after 't' is 'THENCE'.
Can you help me to learn more?
(Other definitions for thence that I've seen before include "From that point" , "As a consequence" , "From that place" , "It follows" , "from that time" .)