What does the cryptic crossword clue "Current terms of the Grand Unified Theory (4)" mean?

The definition is "Current". The wordplay uses acrostic. last letters of "the Grand Unified Theory" = EDDY; definition: "Current" The answer is EDDY.

Current terms of the Grand Unified Theory (4)

Guardian Cryptic #29355 | 21 Down | 2024-04-12 flower