Clue: Against being hugged by beloved on shortened engagement (13)
Answer: DEANTIARODATE
Explanation: Definition: Against being hugged by beloved on shortened engagement
**ANTI** ("against") *being hugged by* **DEAR** ("beloved") + **O**(n) [*shortened*] + **DATE** ("engagement") 
**DEODATE*** ("present" – a gift to God) around ***ANTIAR*** (upas "tree")